{"id":11714,"date":"2026-08-10T21:45:00","date_gmt":"2026-08-10T19:45:00","guid":{"rendered":"https:\/\/www.loading.es\/blog\/?p=11714"},"modified":"2026-08-25T09:33:43","modified_gmt":"2026-08-25T07:33:43","slug":"protocolos-correo-electronic","status":"publish","type":"post","link":"https:\/\/www.loading.es\/blog\/protocolos-correo-electronic\/","title":{"rendered":"Protocolos de correo: cu\u00e1les hay y para qu\u00e9 es cada uno"},"content":{"rendered":"\n<p>Los <strong>protocolos de correo electr\u00f3nico<\/strong> determinan c\u00f3mo se reciben, sincronizan y env\u00edan los mensajes. Si est\u00e1s configurando una cuenta, la respuesta r\u00e1pida es esta: <strong>elige IMAP para recibir y sincronizar el correo y SMTP para enviarlo<\/strong>.<\/p>\n\n\n\n<p>Estas son las funciones de cada opci\u00f3n:<\/p>\n\n\n\n<ul>\n<li><strong>IMAP<\/strong> recibe el correo y mantiene sincronizados los mensajes y las carpetas entre tus dispositivos.<\/li>\n\n\n\n<li><strong>POP3<\/strong> descarga los mensajes en el dispositivo donde has configurado la cuenta.<\/li>\n\n\n\n<li><strong>SMTP<\/strong> env\u00eda los mensajes. No sustituye a IMAP ni a POP3.<\/li>\n<\/ul>\n\n\n\n<p>Para la mayor\u00eda de los usuarios, la combinaci\u00f3n adecuada es <strong>IMAP junto con SMTP<\/strong>. POP3 puede resultar \u00fatil en casos concretos, sobre todo si se quiere guardar el correo en un \u00fanico equipo.<\/p>\n\n\n\n<p><strong><em>Table de Contenidos<\/em><\/strong><\/p>\n\n\n\n<div class=\"wp-block-aioseo-table-of-contents\"><ul><li><a href=\"#aioseo-que-protocolo-de-correo-debes-elegir\">Qu\u00e9 protocolo de correo debes elegir<\/a><\/li><li><a href=\"#aioseo-para-que-sirven-imap-pop3-y-smtp\">Para qu\u00e9 sirven IMAP, POP3 y SMTP<\/a><ul><\/ul><\/li><li><a href=\"#aioseo-diferencias-entre-imap-y-pop3\">Diferencias entre IMAP y POP3<\/a><\/li><li><a href=\"#aioseo-como-configurar-una-cuenta-de-correo\">C\u00f3mo configurar una cuenta de correo<\/a><\/li><li><a href=\"#aioseo-puertos-habituales-de-imap-pop3-y-smtp\">Puertos habituales de IMAP, POP3 y SMTP<\/a><\/li><li><a href=\"#aioseo-otros-terminos-relacionados-con-el-correo-electronico\">Otros t\u00e9rminos relacionados con el correo electr\u00f3nico<\/a><ul><\/ul><\/li><li><a href=\"#aioseo-otras-tecnologias-que-puedes-encontrar\">Otras tecnolog\u00edas que puedes encontrar<\/a><\/li><li><a href=\"#aioseo-problemas-frecuentes-al-configurar-el-correo\">Problemas frecuentes al configurar el correo<\/a><\/li><li><a href=\"#aioseo-webmail-imap-y-pop3-no-son-lo-mismo\">Webmail, IMAP y POP3 no son lo mismo<\/a><\/li><li><a href=\"#aioseo-conclusion\">Conclusi\u00f3n<\/a><\/li><li><a href=\"#aioseo-preguntas-frecuentes-sobre-los-protocolos-de-correo-faq\">Preguntas frecuentes sobre los protocolos de correo (FAQ)<\/a><\/li><\/ul><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.loading.es\/hosting\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"1000\" height=\"100\" src=\"https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb.png\" alt=\"oferta para contratar hosting web\" class=\"wp-image-8039\" srcset=\"https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb.png 1000w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-300x30.png 300w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-768x77.png 768w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-850x85.png 850w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<!-- BLOQUE: explorador-de-terminos-de-correo -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-2847,\n#comp-ld-2847 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-2847 {\n  --ld-ink: #37363d;\n  --ld-muted: #66646d;\n  --ld-line: rgba(55, 54, 61, 0.12);\n  --ld-soft: #f4f4f6;\n  --ld-paper: #fff;\n  --ld-orange: #db7424;\n  --ld-orange-dark: #a84f12;\n  --ld-orange-soft: #fff3e9;\n  --ld-cyan: #007f99;\n  --ld-cyan-soft: #e6f9fc;\n  --ld-green: #198754;\n  --ld-green-soft: #eaf7f0;\n  color: inherit;\n  isolation: isolate;\n  width: 100%;\n  margin: 32px 0;\n  font-family: \"Manrope\", system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;\n}\n\n#comp-ld-2847 .ld-explorer {\n  min-width: 0;\n  margin: 0;\n  padding: 0;\n  border: 0;\n}\n\n#comp-ld-2847 .ld-sr-only {\n  position: absolute;\n  width: 1px;\n  height: 1px;\n  padding: 0;\n  margin: -1px;\n  overflow: hidden;\n  clip: rect(0, 0, 0, 0);\n  white-space: nowrap;\n  border: 0;\n}\n\n#comp-ld-2847 .ld-radio {\n  position: absolute;\n  width: 1px;\n  height: 1px;\n  opacity: 0;\n  pointer-events: none;\n}\n\n#comp-ld-2847 .ld-shell {\n  overflow: hidden;\n  border: 1px solid var(--ld-line);\n  border-radius: 24px;\n  background: var(--ld-paper);\n  box-shadow: 0 18px 45px rgba(55, 54, 61, 0.09);\n}\n\n#comp-ld-2847 .ld-top {\n  display: grid;\n  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);\n  gap: 24px;\n  align-items: end;\n  padding: 24px 26px 22px;\n  color: #f9fafb;\n  background: var(--ld-ink);\n}\n\n#comp-ld-2847 .ld-title {\n  display: block;\n  max-width: 520px;\n  margin: 0;\n  font-size: clamp(1.1rem, 2vw, 1.25rem);\n  line-height: 1.25;\n  font-weight: 800;\n  letter-spacing: -0.025em;\n}\n\n#comp-ld-2847 .ld-intro {\n  max-width: 560px;\n  margin: 7px 0 0;\n  color: #d8d7db;\n  font-size: 0.88rem;\n  line-height: 1.55;\n}\n\n#comp-ld-2847 .ld-groups {\n  display: grid;\n  grid-template-columns: repeat(3, minmax(0, 1fr));\n  gap: 12px;\n}\n\n#comp-ld-2847 .ld-group-name {\n  display: block;\n  margin: 0 0 7px;\n  color: #d8d7db;\n  font-size: 0.69rem;\n  line-height: 1.25;\n  font-weight: 700;\n}\n\n#comp-ld-2847 .ld-chips {\n  display: flex;\n  flex-wrap: wrap;\n  gap: 6px;\n}\n\n#comp-ld-2847 .ld-chip {\n  display: inline-flex;\n  align-items: center;\n  justify-content: center;\n  min-height: 34px;\n  padding: 7px 10px;\n  border: 1px solid rgba(255, 255, 255, 0.2);\n  border-radius: 999px;\n  color: #f9fafb;\n  background: rgba(255, 255, 255, 0.07);\n  font-size: 0.72rem;\n  line-height: 1;\n  font-weight: 800;\n  cursor: pointer;\n  user-select: none;\n  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1),\n    border-color 200ms cubic-bezier(0.16, 1, 0.3, 1),\n    background-color 200ms cubic-bezier(0.16, 1, 0.3, 1),\n    color 200ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-2847 .ld-chip:hover {\n  border-color: rgba(255, 255, 255, 0.48);\n  background: rgba(255, 255, 255, 0.13);\n  transform: translateY(-1px);\n}\n\n#comp-ld-2847 .ld-chip:active {\n  transform: translateY(0);\n}\n\n#comp-ld-2847 #ld-2847-imap:focus-visible ~ .ld-shell label[for=\"ld-2847-imap\"],\n#comp-ld-2847 #ld-2847-pop3:focus-visible ~ .ld-shell label[for=\"ld-2847-pop3\"],\n#comp-ld-2847 #ld-2847-smtp:focus-visible ~ .ld-shell label[for=\"ld-2847-smtp\"],\n#comp-ld-2847 #ld-2847-mx:focus-visible ~ .ld-shell label[for=\"ld-2847-mx\"],\n#comp-ld-2847 #ld-2847-spf:focus-visible ~ .ld-shell label[for=\"ld-2847-spf\"],\n#comp-ld-2847 #ld-2847-dkim:focus-visible ~ .ld-shell label[for=\"ld-2847-dkim\"],\n#comp-ld-2847 #ld-2847-dmarc:focus-visible ~ .ld-shell label[for=\"ld-2847-dmarc\"],\n#comp-ld-2847 #ld-2847-esmtp:focus-visible ~ .ld-shell label[for=\"ld-2847-esmtp\"],\n#comp-ld-2847 #ld-2847-mapi:focus-visible ~ .ld-shell label[for=\"ld-2847-mapi\"],\n#comp-ld-2847 #ld-2847-smime:focus-visible ~ .ld-shell label[for=\"ld-2847-smime\"] {\n  outline: 3px solid var(--ld-cyan);\n  outline-offset: 3px;\n}\n\n#comp-ld-2847 #ld-2847-imap:checked ~ .ld-shell label[for=\"ld-2847-imap\"],\n#comp-ld-2847 #ld-2847-pop3:checked ~ .ld-shell label[for=\"ld-2847-pop3\"],\n#comp-ld-2847 #ld-2847-smtp:checked ~ .ld-shell label[for=\"ld-2847-smtp\"],\n#comp-ld-2847 #ld-2847-mx:checked ~ .ld-shell label[for=\"ld-2847-mx\"],\n#comp-ld-2847 #ld-2847-spf:checked ~ .ld-shell label[for=\"ld-2847-spf\"],\n#comp-ld-2847 #ld-2847-dkim:checked ~ .ld-shell label[for=\"ld-2847-dkim\"],\n#comp-ld-2847 #ld-2847-dmarc:checked ~ .ld-shell label[for=\"ld-2847-dmarc\"],\n#comp-ld-2847 #ld-2847-esmtp:checked ~ .ld-shell label[for=\"ld-2847-esmtp\"],\n#comp-ld-2847 #ld-2847-mapi:checked ~ .ld-shell label[for=\"ld-2847-mapi\"],\n#comp-ld-2847 #ld-2847-smime:checked ~ .ld-shell label[for=\"ld-2847-smime\"] {\n  border-color: var(--ld-orange);\n  color: #2c1b0e;\n  background: #f6a567;\n  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);\n}\n\n#comp-ld-2847 .ld-stage {\n  position: relative;\n  min-height: 440px;\n  background:\n    radial-gradient(circle at 92% 8%, rgba(0, 188, 223, 0.09), transparent 27%),\n    var(--ld-soft);\n}\n\n#comp-ld-2847 .ld-panel {\n  display: none;\n  grid-template-columns: minmax(0, 1.12fr) minmax(270px, 0.88fr);\n  gap: 24px;\n  min-height: 440px;\n  padding: 26px;\n}\n\n#comp-ld-2847 #ld-2847-imap:checked ~ .ld-shell .ld-panel-imap,\n#comp-ld-2847 #ld-2847-pop3:checked ~ .ld-shell .ld-panel-pop3,\n#comp-ld-2847 #ld-2847-smtp:checked ~ .ld-shell .ld-panel-smtp,\n#comp-ld-2847 #ld-2847-mx:checked ~ .ld-shell .ld-panel-mx,\n#comp-ld-2847 #ld-2847-spf:checked ~ .ld-shell .ld-panel-spf,\n#comp-ld-2847 #ld-2847-dkim:checked ~ .ld-shell .ld-panel-dkim,\n#comp-ld-2847 #ld-2847-dmarc:checked ~ .ld-shell .ld-panel-dmarc,\n#comp-ld-2847 #ld-2847-esmtp:checked ~ .ld-shell .ld-panel-esmtp,\n#comp-ld-2847 #ld-2847-mapi:checked ~ .ld-shell .ld-panel-mapi,\n#comp-ld-2847 #ld-2847-smime:checked ~ .ld-shell .ld-panel-smime {\n  display: grid;\n}\n\n#comp-ld-2847 .ld-content {\n  display: flex;\n  min-width: 0;\n  flex-direction: column;\n}\n\n#comp-ld-2847 .ld-heading {\n  display: flex;\n  gap: 14px;\n  align-items: flex-start;\n}\n\n#comp-ld-2847 .ld-acronym {\n  display: inline-flex;\n  flex: 0 0 auto;\n  align-items: center;\n  justify-content: center;\n  min-width: 64px;\n  min-height: 48px;\n  padding: 9px 12px;\n  border-radius: 14px;\n  color: var(--ld-orange-dark);\n  background: var(--ld-orange-soft);\n  font-size: 0.87rem;\n  line-height: 1;\n  font-weight: 800;\n  letter-spacing: 0.02em;\n}\n\n#comp-ld-2847 .ld-kind {\n  display: block;\n  margin: 0 0 4px;\n  color: var(--ld-cyan);\n  font-size: 0.72rem;\n  line-height: 1.25;\n  font-weight: 800;\n}\n\n#comp-ld-2847 .ld-full-name {\n  display: block;\n  margin: 0;\n  color: var(--ld-ink);\n  font-size: clamp(1.05rem, 2vw, 1.22rem);\n  line-height: 1.3;\n  font-weight: 800;\n  letter-spacing: -0.02em;\n  overflow-wrap: anywhere;\n}\n\n#comp-ld-2847 .ld-function {\n  max-width: 690px;\n  margin: 18px 0 0;\n  color: var(--ld-ink);\n  font-size: 1rem;\n  line-height: 1.55;\n  font-weight: 700;\n}\n\n#comp-ld-2847 .ld-explanation {\n  max-width: 690px;\n  margin: 7px 0 0;\n  color: var(--ld-muted);\n  font-size: 0.86rem;\n  line-height: 1.6;\n}\n\n#comp-ld-2847 .ld-facts {\n  display: grid;\n  grid-template-columns: repeat(3, minmax(0, 1fr));\n  gap: 10px;\n  margin-top: auto;\n  padding-top: 22px;\n}\n\n#comp-ld-2847 .ld-fact {\n  min-width: 0;\n  padding: 13px 14px;\n  border: 1px solid var(--ld-line);\n  border-radius: 14px;\n  background: rgba(255, 255, 255, 0.78);\n}\n\n#comp-ld-2847 .ld-fact-label {\n  display: block;\n  margin-bottom: 5px;\n  color: var(--ld-orange-dark);\n  font-size: 0.68rem;\n  line-height: 1.25;\n  font-weight: 800;\n}\n\n#comp-ld-2847 .ld-fact-value {\n  display: block;\n  color: var(--ld-ink);\n  font-size: 0.76rem;\n  line-height: 1.45;\n  font-weight: 600;\n}\n\n#comp-ld-2847 .ld-visual {\n  display: flex;\n  min-width: 0;\n  flex-direction: column;\n  justify-content: center;\n  padding: 20px;\n  border: 1px solid rgba(0, 127, 153, 0.17);\n  border-radius: 18px;\n  background: rgba(255, 255, 255, 0.88);\n  box-shadow: 0 12px 28px rgba(55, 54, 61, 0.07);\n}\n\n#comp-ld-2847 .ld-visual-title {\n  display: block;\n  margin: 0 0 12px;\n  color: var(--ld-ink);\n  font-size: 0.75rem;\n  line-height: 1.3;\n  font-weight: 800;\n  text-align: center;\n}\n\n#comp-ld-2847 .ld-diagram {\n  display: block;\n  width: 100%;\n  height: auto;\n  max-height: 230px;\n}\n\n#comp-ld-2847 .ld-diagram .ld-node {\n  fill: #fff;\n  stroke: #b9b8bd;\n  stroke-width: 1.5;\n}\n\n#comp-ld-2847 .ld-diagram .ld-node-accent {\n  fill: var(--ld-cyan-soft);\n  stroke: var(--ld-cyan);\n  stroke-width: 1.8;\n}\n\n#comp-ld-2847 .ld-diagram .ld-node-orange {\n  fill: var(--ld-orange-soft);\n  stroke: var(--ld-orange);\n  stroke-width: 1.8;\n}\n\n#comp-ld-2847 .ld-diagram .ld-node-green {\n  fill: var(--ld-green-soft);\n  stroke: var(--ld-green);\n  stroke-width: 1.8;\n}\n\n#comp-ld-2847 .ld-diagram .ld-line {\n  fill: none;\n  stroke: #8a8890;\n  stroke-width: 2;\n  stroke-linecap: round;\n  stroke-linejoin: round;\n}\n\n#comp-ld-2847 .ld-diagram .ld-line-accent {\n  fill: none;\n  stroke: var(--ld-orange);\n  stroke-width: 2.5;\n  stroke-linecap: round;\n  stroke-linejoin: round;\n}\n\n#comp-ld-2847 .ld-diagram .ld-line-dash {\n  fill: none;\n  stroke: var(--ld-cyan);\n  stroke-width: 2;\n  stroke-linecap: round;\n  stroke-dasharray: 5 5;\n}\n\n#comp-ld-2847 .ld-diagram .ld-svg-text {\n  fill: var(--ld-ink);\n  font-family: \"Manrope\", system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;\n  font-size: 11px;\n  font-weight: 700;\n  text-anchor: middle;\n}\n\n#comp-ld-2847 .ld-diagram .ld-svg-small {\n  fill: var(--ld-muted);\n  font-family: \"Manrope\", system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;\n  font-size: 9px;\n  font-weight: 600;\n  text-anchor: middle;\n}\n\n#comp-ld-2847 .ld-diagram .ld-check {\n  fill: none;\n  stroke: var(--ld-green);\n  stroke-width: 3;\n  stroke-linecap: round;\n  stroke-linejoin: round;\n}\n\n@media (max-width: 900px) {\n  #comp-ld-2847 .ld-top {\n    grid-template-columns: 1fr;\n    align-items: start;\n  }\n\n  #comp-ld-2847 .ld-panel {\n    grid-template-columns: 1fr;\n  }\n\n  #comp-ld-2847 .ld-visual {\n    min-height: 250px;\n  }\n}\n\n@media (max-width: 640px) {\n  #comp-ld-2847 {\n    margin: 22px 0;\n  }\n\n  #comp-ld-2847 .ld-shell {\n    border-radius: 18px;\n  }\n\n  #comp-ld-2847 .ld-top,\n  #comp-ld-2847 .ld-panel {\n    padding: 20px;\n  }\n\n  #comp-ld-2847 .ld-groups {\n    grid-template-columns: 1fr;\n    gap: 10px;\n  }\n\n  #comp-ld-2847 .ld-group {\n    display: grid;\n    grid-template-columns: 104px minmax(0, 1fr);\n    gap: 8px;\n    align-items: start;\n  }\n\n  #comp-ld-2847 .ld-group-name {\n    margin: 9px 0 0;\n  }\n\n  #comp-ld-2847 .ld-chip {\n    min-height: 36px;\n    padding: 8px 11px;\n  }\n\n  #comp-ld-2847 .ld-stage,\n  #comp-ld-2847 .ld-panel {\n    min-height: 0;\n  }\n\n  #comp-ld-2847 .ld-heading {\n    gap: 11px;\n  }\n\n  #comp-ld-2847 .ld-acronym {\n    min-width: 58px;\n  }\n\n  #comp-ld-2847 .ld-facts {\n    grid-template-columns: 1fr;\n    margin-top: 0;\n  }\n\n  #comp-ld-2847 .ld-visual {\n    min-height: 220px;\n    padding: 15px;\n  }\n}\n\n@media (max-width: 390px) {\n  #comp-ld-2847 .ld-group {\n    grid-template-columns: 1fr;\n  }\n\n  #comp-ld-2847 .ld-group-name {\n    margin-top: 0;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-2847 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-2847\">\n  <fieldset class=\"ld-explorer\">\n    <legend class=\"ld-sr-only\">Selecciona un t\u00e9rmino relacionado con el correo electr\u00f3nico<\/legend>\n\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-imap\" aria-controls=\"ld-2847-panel-imap\" checked>\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-pop3\" aria-controls=\"ld-2847-panel-pop3\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-smtp\" aria-controls=\"ld-2847-panel-smtp\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-mx\" aria-controls=\"ld-2847-panel-mx\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-spf\" aria-controls=\"ld-2847-panel-spf\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-dkim\" aria-controls=\"ld-2847-panel-dkim\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-dmarc\" aria-controls=\"ld-2847-panel-dmarc\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-esmtp\" aria-controls=\"ld-2847-panel-esmtp\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-mapi\" aria-controls=\"ld-2847-panel-mapi\">\n    <input class=\"ld-radio\" type=\"radio\" name=\"ld-2847-term\" id=\"ld-2847-smime\" aria-controls=\"ld-2847-panel-smime\">\n\n    <div class=\"ld-shell\">\n      <div class=\"ld-top\">\n        <div>\n          <span class=\"ld-title\">C\u00f3mo se mueve y se protege un correo<\/span>\n          <p class=\"ld-intro\">Elige una sigla para ver su papel, d\u00f3nde interviene y en qu\u00e9 momento puede afectarte.<\/p>\n        <\/div>\n\n        <div class=\"ld-groups\" role=\"group\" aria-label=\"T\u00e9rminos disponibles\">\n          <div class=\"ld-group\" role=\"group\" aria-labelledby=\"ld-2847-group-access\">\n            <span class=\"ld-group-name\" id=\"ld-2847-group-access\">Recibir y enviar<\/span>\n            <div class=\"ld-chips\">\n              <label class=\"ld-chip\" id=\"ld-2847-label-imap\" for=\"ld-2847-imap\">IMAP<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-pop3\" for=\"ld-2847-pop3\">POP3<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-smtp\" for=\"ld-2847-smtp\">SMTP<\/label>\n            <\/div>\n          <\/div>\n          <div class=\"ld-group\" role=\"group\" aria-labelledby=\"ld-2847-group-domain\">\n            <span class=\"ld-group-name\" id=\"ld-2847-group-domain\">Dominio y autenticaci\u00f3n<\/span>\n            <div class=\"ld-chips\">\n              <label class=\"ld-chip\" id=\"ld-2847-label-mx\" for=\"ld-2847-mx\">MX<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-spf\" for=\"ld-2847-spf\">SPF<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-dkim\" for=\"ld-2847-dkim\">DKIM<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-dmarc\" for=\"ld-2847-dmarc\">DMARC<\/label>\n            <\/div>\n          <\/div>\n          <div class=\"ld-group\" role=\"group\" aria-labelledby=\"ld-2847-group-advanced\">\n            <span class=\"ld-group-name\" id=\"ld-2847-group-advanced\">Opciones avanzadas<\/span>\n            <div class=\"ld-chips\">\n              <label class=\"ld-chip\" id=\"ld-2847-label-esmtp\" for=\"ld-2847-esmtp\">ESMTP<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-mapi\" for=\"ld-2847-mapi\">MAPI<\/label>\n              <label class=\"ld-chip\" id=\"ld-2847-label-smime\" for=\"ld-2847-smime\">S\/MIME<\/label>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"ld-stage\" aria-live=\"polite\">\n        <div class=\"ld-panel ld-panel-imap\" id=\"ld-2847-panel-imap\" role=\"region\" aria-labelledby=\"ld-2847-label-imap\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">IMAP<\/span>\n              <div>\n                <span class=\"ld-kind\">Protocolo de acceso<\/span>\n                <span class=\"ld-full-name\">Internet Message Access Protocol<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Recibe y sincroniza el correo entre varios dispositivos.<\/p>\n            <p class=\"ld-explanation\">Los mensajes permanecen en el servidor. Leer, mover o borrar un correo se refleja en el m\u00f3vil, el ordenador y el webmail.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Consultar el mismo buz\u00f3n desde varios lugares.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En la aplicaci\u00f3n de correo o el cliente.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Cuando usas la cuenta en m\u00e1s de un dispositivo.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">Un buz\u00f3n, varios dispositivos sincronizados<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Servidor de correo conectado a m\u00f3vil, ordenador y webmail\">\n              <rect class=\"ld-node-orange\" x=\"105\" y=\"16\" width=\"110\" height=\"48\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"37\">Servidor<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"52\">buz\u00f3n central<\/text>\n              <path class=\"ld-line-accent\" d=\"M130 64 C112 89 83 100 67 119\"\/>\n              <path class=\"ld-line-accent\" d=\"M160 64 L160 119\"\/>\n              <path class=\"ld-line-accent\" d=\"M190 64 C208 89 237 100 253 119\"\/>\n              <path class=\"ld-line\" d=\"M62 112 l5 7 7-4\"\/>\n              <path class=\"ld-line\" d=\"M155 112 l5 7 5-7\"\/>\n              <path class=\"ld-line\" d=\"M246 114 l7 5 5-7\"\/>\n              <rect class=\"ld-node-accent\" x=\"22\" y=\"122\" width=\"90\" height=\"54\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"115\" y=\"122\" width=\"90\" height=\"54\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"208\" y=\"122\" width=\"90\" height=\"54\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"67\" y=\"145\">M\u00f3vil<\/text>\n              <text class=\"ld-svg-small\" x=\"67\" y=\"160\">sincronizado<\/text>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"145\">Ordenador<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"160\">sincronizado<\/text>\n              <text class=\"ld-svg-text\" x=\"253\" y=\"145\">Webmail<\/text>\n              <text class=\"ld-svg-small\" x=\"253\" y=\"160\">sincronizado<\/text>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-pop3\" id=\"ld-2847-panel-pop3\" role=\"region\" aria-labelledby=\"ld-2847-label-pop3\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">POP3<\/span>\n              <div>\n                <span class=\"ld-kind\">Protocolo de descarga<\/span>\n                <span class=\"ld-full-name\">Post Office Protocol version 3<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Descarga los mensajes desde el servidor a un dispositivo.<\/p>\n            <p class=\"ld-explanation\">El correo queda guardado de forma local y puede eliminarse del servidor seg\u00fan la configuraci\u00f3n. Es menos pr\u00e1ctico para mantener varios equipos sincronizados.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Guardar una copia local del buz\u00f3n.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En la aplicaci\u00f3n de correo del equipo.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Cuando quieres descargar y consultar sin conexi\u00f3n.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">El correo baja a un equipo<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Mensajes descargados desde el servidor a un solo ordenador\">\n              <rect class=\"ld-node-orange\" x=\"95\" y=\"18\" width=\"130\" height=\"52\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"40\">Servidor<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"55\">mensajes<\/text>\n              <path class=\"ld-line-accent\" d=\"M160 72 L160 126\"\/>\n              <path class=\"ld-line-accent\" d=\"M153 118 l7 9 7-9\"\/>\n              <rect class=\"ld-node-accent\" x=\"83\" y=\"130\" width=\"154\" height=\"50\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"151\">Un ordenador<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"166\">copia local descargada<\/text>\n              <rect class=\"ld-node\" x=\"42\" y=\"91\" width=\"42\" height=\"28\" rx=\"7\"\/>\n              <path class=\"ld-line\" d=\"M49 99 l14 10 14-10\"\/>\n              <rect class=\"ld-node\" x=\"236\" y=\"91\" width=\"42\" height=\"28\" rx=\"7\"\/>\n              <path class=\"ld-line\" d=\"M243 99 l14 10 14-10\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-smtp\" id=\"ld-2847-panel-smtp\" role=\"region\" aria-labelledby=\"ld-2847-label-smtp\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">SMTP<\/span>\n              <div>\n                <span class=\"ld-kind\">Protocolo de env\u00edo<\/span>\n                <span class=\"ld-full-name\">Simple Mail Transfer Protocol<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Se utiliza para enviar correo.<\/p>\n            <p class=\"ld-explanation\">La aplicaci\u00f3n entrega el mensaje al servidor saliente. Ese servidor lo transmite hasta el sistema de correo del destinatario.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Enviar y transferir mensajes.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En el servidor saliente del cliente de correo.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Cuando un mensaje no sale o falla la autenticaci\u00f3n.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">Del remitente al destinatario<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Remitente conectado al servidor saliente y al destinatario\">\n              <rect class=\"ld-node-accent\" x=\"12\" y=\"78\" width=\"84\" height=\"54\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"116\" y=\"67\" width=\"88\" height=\"76\" rx=\"12\"\/>\n              <rect class=\"ld-node-green\" x=\"224\" y=\"78\" width=\"84\" height=\"54\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"54\" y=\"101\">Remitente<\/text>\n              <text class=\"ld-svg-small\" x=\"54\" y=\"116\">escribe<\/text>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"97\">Servidor<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"113\">saliente<\/text>\n              <text class=\"ld-svg-text\" x=\"266\" y=\"101\">Destino<\/text>\n              <text class=\"ld-svg-small\" x=\"266\" y=\"116\">recibe<\/text>\n              <path class=\"ld-line-accent\" d=\"M96 105 H116\"\/>\n              <path class=\"ld-line-accent\" d=\"M108 98 l8 7-8 7\"\/>\n              <path class=\"ld-line-accent\" d=\"M204 105 H224\"\/>\n              <path class=\"ld-line-accent\" d=\"M216 98 l8 7-8 7\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-mx\" id=\"ld-2847-panel-mx\" role=\"region\" aria-labelledby=\"ld-2847-label-mx\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">MX<\/span>\n              <div>\n                <span class=\"ld-kind\">Registro DNS<\/span>\n                <span class=\"ld-full-name\">Mail Exchange<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Indica d\u00f3nde se recibe el correo de un dominio.<\/p>\n            <p class=\"ld-explanation\">El servidor que env\u00eda consulta el DNS del dominio. El registro MX le se\u00f1ala qu\u00e9 servidor debe aceptar el mensaje y con qu\u00e9 prioridad.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Dirigir cada correo al servidor correcto.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En la zona DNS del dominio.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Al activar o migrar el correo de tu dominio.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">El DNS se\u00f1ala el buz\u00f3n de destino<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Dominio consulta el DNS y dirige el mensaje al servidor de correo\">\n              <rect class=\"ld-node-accent\" x=\"18\" y=\"25\" width=\"104\" height=\"46\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"198\" y=\"25\" width=\"104\" height=\"46\" rx=\"12\"\/>\n              <rect class=\"ld-node-green\" x=\"106\" y=\"139\" width=\"108\" height=\"48\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"70\" y=\"53\">Dominio<\/text>\n              <text class=\"ld-svg-text\" x=\"250\" y=\"46\">DNS<\/text>\n              <text class=\"ld-svg-small\" x=\"250\" y=\"59\">registro MX<\/text>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"160\">Servidor<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"174\">de correo<\/text>\n              <path class=\"ld-line-dash\" d=\"M122 48 H198\"\/>\n              <path class=\"ld-line\" d=\"M190 42 l8 6-8 6\"\/>\n              <path class=\"ld-line-accent\" d=\"M250 71 C250 107 214 112 184 139\"\/>\n              <path class=\"ld-line-accent\" d=\"M185 129 l-1 10 10-2\"\/>\n              <path class=\"ld-line\" d=\"M70 71 C70 114 100 118 136 139\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-spf\" id=\"ld-2847-panel-spf\" role=\"region\" aria-labelledby=\"ld-2847-label-spf\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">SPF<\/span>\n              <div>\n                <span class=\"ld-kind\">Autorizaci\u00f3n del remitente<\/span>\n                <span class=\"ld-full-name\">Sender Policy Framework<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Indica qu\u00e9 servidores est\u00e1n autorizados para enviar correo por un dominio.<\/p>\n            <p class=\"ld-explanation\">El servidor receptor compara el origen del mensaje con la lista publicada en DNS. El resultado ayuda a detectar env\u00edos falsificados.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Reducir la suplantaci\u00f3n del dominio.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">Como registro TXT en el DNS.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Al usar plataformas que env\u00edan en tu nombre.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">El origen se compara con la lista autorizada<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Servidor remitente comparado con una lista SPF y autorizado\">\n              <rect class=\"ld-node-accent\" x=\"18\" y=\"76\" width=\"92\" height=\"56\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"124\" y=\"27\" width=\"178\" height=\"54\" rx=\"12\"\/>\n              <rect class=\"ld-node-green\" x=\"172\" y=\"128\" width=\"130\" height=\"54\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"64\" y=\"100\">Servidor<\/text>\n              <text class=\"ld-svg-small\" x=\"64\" y=\"115\">origen<\/text>\n              <text class=\"ld-svg-text\" x=\"213\" y=\"50\">SPF en DNS<\/text>\n              <text class=\"ld-svg-small\" x=\"213\" y=\"65\">servidores permitidos<\/text>\n              <text class=\"ld-svg-text\" x=\"237\" y=\"151\">Autorizado<\/text>\n              <text class=\"ld-svg-small\" x=\"237\" y=\"166\">puede continuar<\/text>\n              <path class=\"ld-line-dash\" d=\"M110 92 C139 76 149 67 162 63\"\/>\n              <path class=\"ld-line-accent\" d=\"M213 81 C213 103 221 111 230 128\"\/>\n              <path class=\"ld-check\" d=\"M279 145 l7 7 13-15\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-dkim\" id=\"ld-2847-panel-dkim\" role=\"region\" aria-labelledby=\"ld-2847-label-dkim\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">DKIM<\/span>\n              <div>\n                <span class=\"ld-kind\">Firma del mensaje<\/span>\n                <span class=\"ld-full-name\">DomainKeys Identified Mail<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">A\u00f1ade una firma digital al mensaje.<\/p>\n            <p class=\"ld-explanation\">El servidor emisor firma el correo con una clave privada. El receptor usa la clave p\u00fablica del DNS para comprobar el dominio y que el contenido no se alter\u00f3.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Verificar origen e integridad del mensaje.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En el servidor de correo y el DNS.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Cuando la firma falta, falla o est\u00e1 mal publicada.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">Firmar al salir, verificar al llegar<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Mensaje firmado por DKIM y verificado en el destino\">\n              <rect class=\"ld-node-accent\" x=\"15\" y=\"73\" width=\"88\" height=\"64\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"116\" y=\"73\" width=\"88\" height=\"64\" rx=\"12\"\/>\n              <rect class=\"ld-node-green\" x=\"217\" y=\"73\" width=\"88\" height=\"64\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"59\" y=\"98\">Mensaje<\/text>\n              <text class=\"ld-svg-small\" x=\"59\" y=\"114\">original<\/text>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"98\">Firma<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"114\">DKIM<\/text>\n              <text class=\"ld-svg-text\" x=\"261\" y=\"98\">Verifica<\/text>\n              <text class=\"ld-svg-small\" x=\"261\" y=\"114\">clave DNS<\/text>\n              <path class=\"ld-line-accent\" d=\"M103 105 H116\"\/>\n              <path class=\"ld-line-accent\" d=\"M204 105 H217\"\/>\n              <path class=\"ld-check\" d=\"M251 151 l8 8 15-18\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-dmarc\" id=\"ld-2847-panel-dmarc\" role=\"region\" aria-labelledby=\"ld-2847-label-dmarc\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">DMARC<\/span>\n              <div>\n                <span class=\"ld-kind\">Pol\u00edtica y control<\/span>\n                <span class=\"ld-full-name\">Domain-based Message Authentication, Reporting and Conformance<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Aplica pol\u00edticas basadas en SPF y DKIM y permite recibir informes.<\/p>\n            <p class=\"ld-explanation\">El dominio indica qu\u00e9 hacer si un mensaje no supera las comprobaciones: observar, enviar a spam o rechazar. Los informes ayudan a detectar abusos y errores.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Decidir y vigilar el uso del dominio.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">Como registro TXT en el DNS.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Cuando proteges la reputaci\u00f3n y entrega del dominio.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">Dos comprobaciones alimentan una decisi\u00f3n<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"SPF y DKIM alimentan la pol\u00edtica DMARC que toma una decisi\u00f3n\">\n              <rect class=\"ld-node-accent\" x=\"18\" y=\"30\" width=\"82\" height=\"48\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"18\" y=\"132\" width=\"82\" height=\"48\" rx=\"12\"\/>\n              <rect class=\"ld-node\" x=\"120\" y=\"77\" width=\"82\" height=\"58\" rx=\"12\"\/>\n              <rect class=\"ld-node-green\" x=\"222\" y=\"77\" width=\"82\" height=\"58\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"59\" y=\"59\">SPF<\/text>\n              <text class=\"ld-svg-text\" x=\"59\" y=\"161\">DKIM<\/text>\n              <text class=\"ld-svg-text\" x=\"161\" y=\"102\">DMARC<\/text>\n              <text class=\"ld-svg-small\" x=\"161\" y=\"118\">pol\u00edtica<\/text>\n              <text class=\"ld-svg-text\" x=\"263\" y=\"101\">Decisi\u00f3n<\/text>\n              <text class=\"ld-svg-small\" x=\"263\" y=\"117\">e informe<\/text>\n              <path class=\"ld-line-accent\" d=\"M100 54 C120 54 126 73 137 82\"\/>\n              <path class=\"ld-line-accent\" d=\"M100 156 C120 156 126 137 137 128\"\/>\n              <path class=\"ld-line-accent\" d=\"M202 106 H222\"\/>\n              <path class=\"ld-line-accent\" d=\"M214 99 l8 7-8 7\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-esmtp\" id=\"ld-2847-panel-esmtp\" role=\"region\" aria-labelledby=\"ld-2847-label-esmtp\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">ESMTP<\/span>\n              <div>\n                <span class=\"ld-kind\">Extensi\u00f3n del protocolo de env\u00edo<\/span>\n                <span class=\"ld-full-name\">Extended Simple Mail Transfer Protocol<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Es una ampliaci\u00f3n de SMTP con funciones adicionales.<\/p>\n            <p class=\"ld-explanation\">Antes de enviar, los servidores anuncian qu\u00e9 extensiones admiten. As\u00ed pueden usar autenticaci\u00f3n, cifrado, mensajes de mayor tama\u00f1o y otras capacidades.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">A\u00f1adir capacidades al env\u00edo SMTP.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En el servidor de correo saliente.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Al autenticarte o usar conexiones seguras.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">SMTP ampl\u00eda sus capacidades<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"SMTP ampliado con autenticaci\u00f3n, cifrado y m\u00e1s capacidad\">\n              <rect class=\"ld-node-orange\" x=\"20\" y=\"75\" width=\"88\" height=\"58\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"132\" y=\"24\" width=\"168\" height=\"44\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"132\" y=\"83\" width=\"168\" height=\"44\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"132\" y=\"142\" width=\"168\" height=\"44\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"64\" y=\"101\">SMTP<\/text>\n              <text class=\"ld-svg-small\" x=\"64\" y=\"116\">base<\/text>\n              <text class=\"ld-svg-text\" x=\"216\" y=\"51\">Autenticaci\u00f3n<\/text>\n              <text class=\"ld-svg-text\" x=\"216\" y=\"110\">Cifrado<\/text>\n              <text class=\"ld-svg-text\" x=\"216\" y=\"169\">M\u00e1s capacidad<\/text>\n              <path class=\"ld-line-accent\" d=\"M108 103 C123 103 121 47 132 47\"\/>\n              <path class=\"ld-line-accent\" d=\"M108 104 H132\"\/>\n              <path class=\"ld-line-accent\" d=\"M108 105 C123 105 121 164 132 164\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-mapi\" id=\"ld-2847-panel-mapi\" role=\"region\" aria-labelledby=\"ld-2847-label-mapi\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">MAPI<\/span>\n              <div>\n                <span class=\"ld-kind\">Interfaz de mensajer\u00eda<\/span>\n                <span class=\"ld-full-name\">Messaging Application Programming Interface<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Se utiliza principalmente en entornos Microsoft Outlook y Exchange.<\/p>\n            <p class=\"ld-explanation\">Conecta Outlook con servicios de Exchange y permite trabajar con correo, calendarios, contactos y otras funciones colaborativas.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Integrar mensajer\u00eda y trabajo colaborativo.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En Outlook, Exchange o Microsoft 365.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">En cuentas corporativas del entorno Microsoft.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">Outlook accede a varios servicios de Exchange<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Outlook conectado mediante MAPI a correo, calendario y contactos de Exchange\">\n              <rect class=\"ld-node-orange\" x=\"18\" y=\"76\" width=\"88\" height=\"58\" rx=\"12\"\/>\n              <rect class=\"ld-node\" x=\"124\" y=\"76\" width=\"72\" height=\"58\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"214\" y=\"20\" width=\"88\" height=\"46\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"214\" y=\"82\" width=\"88\" height=\"46\" rx=\"12\"\/>\n              <rect class=\"ld-node-accent\" x=\"214\" y=\"144\" width=\"88\" height=\"46\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"62\" y=\"101\">Outlook<\/text>\n              <text class=\"ld-svg-small\" x=\"62\" y=\"116\">cliente<\/text>\n              <text class=\"ld-svg-text\" x=\"160\" y=\"101\">MAPI<\/text>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"116\">conecta<\/text>\n              <text class=\"ld-svg-text\" x=\"258\" y=\"48\">Correo<\/text>\n              <text class=\"ld-svg-text\" x=\"258\" y=\"110\">Calendario<\/text>\n              <text class=\"ld-svg-text\" x=\"258\" y=\"172\">Contactos<\/text>\n              <path class=\"ld-line-accent\" d=\"M106 105 H124\"\/>\n              <path class=\"ld-line\" d=\"M196 104 C210 104 206 43 214 43\"\/>\n              <path class=\"ld-line\" d=\"M196 105 H214\"\/>\n              <path class=\"ld-line\" d=\"M196 106 C210 106 206 167 214 167\"\/>\n            <\/svg>\n          <\/div>\n        <\/div>\n\n        <div class=\"ld-panel ld-panel-smime\" id=\"ld-2847-panel-smime\" role=\"region\" aria-labelledby=\"ld-2847-label-smime\">\n          <div class=\"ld-content\">\n            <div class=\"ld-heading\">\n              <span class=\"ld-acronym\">S\/MIME<\/span>\n              <div>\n                <span class=\"ld-kind\">Firma y cifrado<\/span>\n                <span class=\"ld-full-name\">Secure\/Multipurpose Internet Mail Extensions<\/span>\n              <\/div>\n            <\/div>\n            <p class=\"ld-function\">Permite firmar y cifrar mensajes mediante certificados.<\/p>\n            <p class=\"ld-explanation\">La firma confirma qui\u00e9n envi\u00f3 el correo y que no cambi\u00f3. El cifrado hace que solo el destinatario con la clave adecuada pueda leerlo.<\/p>\n            <div class=\"ld-facts\">\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Para qu\u00e9 sirve<\/span><span class=\"ld-fact-value\">Proteger el contenido y acreditar al remitente.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">D\u00f3nde se configura<\/span><span class=\"ld-fact-value\">En el cliente de correo y sus certificados.<\/span><\/div>\n              <div class=\"ld-fact\"><span class=\"ld-fact-label\">Cu\u00e1ndo te afecta<\/span><span class=\"ld-fact-value\">Al intercambiar informaci\u00f3n sensible o firmada.<\/span><\/div>\n            <\/div>\n          <\/div>\n          <div class=\"ld-visual\">\n            <span class=\"ld-visual-title\">El mensaje se protege antes de viajar<\/span>\n            <svg class=\"ld-diagram\" viewBox=\"0 0 320 210\" role=\"img\" aria-label=\"Mensaje cifrado con un candado antes de llegar al destinatario\">\n              <rect class=\"ld-node-accent\" x=\"14\" y=\"76\" width=\"88\" height=\"58\" rx=\"12\"\/>\n              <rect class=\"ld-node-orange\" x=\"116\" y=\"63\" width=\"88\" height=\"84\" rx=\"14\"\/>\n              <rect class=\"ld-node-green\" x=\"218\" y=\"76\" width=\"88\" height=\"58\" rx=\"12\"\/>\n              <text class=\"ld-svg-text\" x=\"58\" y=\"101\">Mensaje<\/text>\n              <text class=\"ld-svg-small\" x=\"58\" y=\"116\">sin proteger<\/text>\n              <path class=\"ld-line-accent\" d=\"M102 105 H116\"\/>\n              <path class=\"ld-line-accent\" d=\"M204 105 H218\"\/>\n              <path class=\"ld-line\" d=\"M141 97 V85 C141 73 179 73 179 85 V97\"\/>\n              <rect class=\"ld-node-orange\" x=\"136\" y=\"96\" width=\"48\" height=\"34\" rx=\"8\"\/>\n              <text class=\"ld-svg-small\" x=\"160\" y=\"117\">cifrado<\/text>\n              <text class=\"ld-svg-text\" x=\"262\" y=\"101\">Destino<\/text>\n              <text class=\"ld-svg-small\" x=\"262\" y=\"116\">puede abrirlo<\/text>\n            <\/svg>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/fieldset>\n<\/div>\n<!-- FIN BLOQUE: explorador-de-terminos-de-correo -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-que-protocolo-de-correo-debes-elegir\">Qu\u00e9 protocolo de correo debes elegir<\/h2>\n\n\n\n<p>Elige <strong>IMAP<\/strong> si consultas la misma cuenta desde el ordenador, el m\u00f3vil o la tableta. Cuando lees, mueves o eliminas un mensaje, el cambio se sincroniza con el servidor y aparece en los dem\u00e1s dispositivos.<\/p>\n\n\n\n<p>Elige <strong>POP3<\/strong> si quieres descargar los mensajes en un solo equipo y conservar una copia local. Puede ser \u00fatil para trabajar con una conexi\u00f3n limitada o reducir el espacio ocupado en el servidor, seg\u00fan la configuraci\u00f3n del programa de correo.<\/p>\n\n\n\n<p>En ambos casos necesitar\u00e1s <strong>SMTP para enviar mensajes<\/strong>. Por tanto, no se trata de elegir entre IMAP y SMTP: debes elegir entre IMAP y POP3 para la recepci\u00f3n, y configurar SMTP para el env\u00edo.<\/p>\n\n\n\n<p>La recomendaci\u00f3n habitual queda as\u00ed:<\/p>\n\n\n\n<ul>\n<li><strong>Varios dispositivos o trabajo en equipo:<\/strong> IMAP y SMTP.<\/li>\n\n\n\n<li><strong>Un solo equipo y archivo local:<\/strong> POP3 y SMTP.<\/li>\n\n\n\n<li><strong>Acceso desde un navegador sin configurar programas:<\/strong> webmail.<\/li>\n<\/ul>\n\n\n\n<!-- BLOQUE: que-protocolo-de-correo-debes-elegir -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-101,\n#comp-ld-101 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-101 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-101 .ld-shell {\n  position: relative;\n  padding: clamp(22px, 4vw, 34px);\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 24px;\n  background: #ffffff;\n  box-shadow: 0 12px 40px rgba(55, 54, 61, 0.06);\n}\n\n#comp-ld-101 .ld-eyebrow {\n  display: inline-flex;\n  align-items: center;\n  gap: 8px;\n  margin-bottom: 14px;\n  padding: 5px 12px;\n  border-radius: 999px;\n  background: rgba(0, 188, 223, 0.1);\n  color: #0891b2;\n  font-size: 0.7rem;\n  font-weight: 700;\n  letter-spacing: 0.12em;\n  text-transform: uppercase;\n}\n\n#comp-ld-101 .ld-title {\n  margin: 0 0 8px;\n  font-size: 1.22rem;\n  font-weight: 800;\n  color: #37363d;\n  letter-spacing: -0.02em;\n}\n\n#comp-ld-101 .ld-sub {\n  margin: 0 0 22px;\n  font-size: 0.92rem;\n  color: rgba(55, 54, 61, 0.65);\n  line-height: 1.55;\n}\n\n#comp-ld-101 .ld-options {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 14px;\n}\n\n#comp-ld-101 .ld-opt {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  gap: 8px;\n  padding: 18px 16px;\n  border: 1.5px solid rgba(55, 54, 61, 0.12);\n  border-radius: 16px;\n  background: #fafafa;\n  cursor: pointer;\n  text-align: left;\n  font-family: inherit;\n  font-size: inherit;\n  transition: border-color 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    background 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    transform 300ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-101 .ld-opt:hover {\n  border-color: rgba(0, 188, 223, 0.5);\n  transform: translateY(-2px);\n}\n\n#comp-ld-101 .ld-opt:focus-visible {\n  outline: 3px solid rgba(0, 188, 223, 0.3);\n  outline-offset: 2px;\n}\n\n#comp-ld-101 .ld-opt[aria-selected=\"true\"] {\n  border-color: #db7424;\n  background: rgba(219, 116, 36, 0.06);\n}\n\n#comp-ld-101 .ld-opt-icon {\n  width: 38px;\n  height: 38px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  border-radius: 12px;\n  background: rgba(0, 188, 223, 0.1);\n  color: #00bcdf;\n  transition: background 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    color 300ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-101 .ld-opt[aria-selected=\"true\"] .ld-opt-icon {\n  background: rgba(219, 116, 36, 0.12);\n  color: #db7424;\n}\n\n#comp-ld-101 .ld-opt-icon svg {\n  width: 22px;\n  height: 22px;\n}\n\n#comp-ld-101 .ld-opt-label {\n  font-size: 0.95rem;\n  font-weight: 700;\n  color: #37363d;\n  line-height: 1.3;\n}\n\n#comp-ld-101 .ld-opt-hint {\n  font-size: 0.78rem;\n  color: rgba(55, 54, 61, 0.55);\n  line-height: 1.4;\n}\n\n#comp-ld-101 .ld-result {\n  margin-top: 20px;\n  padding: 0 20px;\n  border-radius: 16px;\n  background: linear-gradient(135deg, rgba(55, 54, 61, 0.03), rgba(0, 188, 223, 0.04));\n  border: 1px solid rgba(0, 188, 223, 0.2);\n  opacity: 0;\n  max-height: 0;\n  overflow: hidden;\n  transition: opacity 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    max-height 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    padding 400ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-101 .ld-result.is-visible {\n  opacity: 1;\n  max-height: 320px;\n  padding: 20px;\n}\n\n#comp-ld-101 .ld-result-badge {\n  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class=\"ld-eyebrow\">Decisi\u00f3n r\u00e1pida<\/span>\n    <div class=\"ld-title\">Elige tu protocolo seg\u00fan tu caso<\/div>\n    <p class=\"ld-sub\">Selecciona la opci\u00f3n que mejor describe c\u00f3mo usas el correo y te diremos qu\u00e9 configurar.<\/p>\n    <div class=\"ld-options\" role=\"tablist\" aria-label=\"Casos de uso de correo\">\n      <button type=\"button\" class=\"ld-opt\" role=\"tab\" aria-selected=\"false\" data-case=\"multi\">\n        <span class=\"ld-opt-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"2\" y=\"3\" width=\"14\" height=\"11\" rx=\"1.5\"\/><rect x=\"15\" y=\"9\" width=\"7\" height=\"11\" rx=\"1.5\"\/><path d=\"M5 18h6\"\/><\/svg><\/span>\n        <span class=\"ld-opt-label\">Varios dispositivos<\/span>\n        <span class=\"ld-opt-hint\">M\u00f3vil, tablet y ordenador<\/span>\n      <\/button>\n      <button type=\"button\" class=\"ld-opt\" role=\"tab\" aria-selected=\"false\" data-case=\"single\">\n        <span class=\"ld-opt-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"4\" width=\"18\" height=\"13\" rx=\"1.5\"\/><path d=\"M9 21h6M12 17v4\"\/><\/svg><\/span>\n        <span class=\"ld-opt-label\">Un solo equipo<\/span>\n        <span class=\"ld-opt-hint\">Archivo local en tu PC<\/span>\n      <\/button>\n      <button type=\"button\" class=\"ld-opt\" role=\"tab\" aria-selected=\"false\" data-case=\"web\">\n        <span class=\"ld-opt-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M3 12h18M12 3a14 14 0 0 1 0 18M12 3a14 14 0 0 0 0 18\"\/><\/svg><\/span>\n        <span class=\"ld-opt-label\">Solo desde el navegador<\/span>\n        <span class=\"ld-opt-hint\">Sin instalar programas<\/span>\n      <\/button>\n    <\/div>\n    <div class=\"ld-result\" id=\"ld101-result\" role=\"tabpanel\" aria-live=\"polite\">\n      <div class=\"ld-result-badge\">Recomendaci\u00f3n<\/div>\n      <div class=\"ld-result-text\" id=\"ld101-result-text\"><\/div>\n      <p class=\"ld-result-note\" id=\"ld101-result-note\"><\/p>\n    <\/div>\n  <\/div>\n<\/div>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function () {\n    var root = document.getElementById('comp-ld-101');\n    if (!root) return;\n    var opts = root.querySelectorAll('.ld-opt');\n    var result = root.querySelector('#ld101-result');\n    var resultText = root.querySelector('#ld101-result-text');\n    var resultNote = root.querySelector('#ld101-result-note');\n    var data = {\n      multi: { text: 'Configura <strong>IMAP para recibir<\/strong> y <strong>SMTP para enviar<\/strong>.', note: 'Mantendr\u00e1s el buz\u00f3n sincronizado entre todos tus dispositivos.' },\n      single: { text: 'Configura <strong>POP3 para recibir<\/strong> y <strong>SMTP para enviar<\/strong>.', note: 'Descargar\u00e1s los mensajes en un equipo y reducir\u00e1s el espacio en el servidor.' },\n      web: { text: 'Usa el <strong>webmail<\/strong> de tu proveedor.', note: 'Acceder\u00e1s al buz\u00f3n desde el navegador sin configurar ning\u00fan programa.' }\n    };\n    opts.forEach(function (opt) {\n      opt.addEventListener('click', function () {\n        opts.forEach(function (o) { o.setAttribute('aria-selected', 'false'); });\n        opt.setAttribute('aria-selected', 'true');\n        var key = opt.getAttribute('data-case');\n        var d = data[key];\n        if (!d) return;\n        resultText.innerHTML = d.text;\n        resultNote.textContent = d.note;\n        result.classList.add('is-visible');\n      });\n    });\n  });\n<\/script>\n<!-- FIN BLOQUE: que-protocolo-de-correo-debes-elegir -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-para-que-sirven-imap-pop3-y-smtp\">Para qu\u00e9 sirven IMAP, POP3 y SMTP<\/h2>\n\n\n\n<p>Aunque aparecen juntos al configurar una cuenta, <strong>no cumplen la misma funci\u00f3n<\/strong>. IMAP y POP3 se ocupan del correo entrante. SMTP se encarga del correo saliente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-imap\">IMAP<\/h3>\n\n\n\n<p>IMAP mantiene los mensajes en el servidor y sincroniza su estado. Esto incluye las carpetas, los correos le\u00eddos, los borradores y los mensajes enviados, siempre que el programa est\u00e9 configurado para guardarlos en las carpetas del servidor.<\/p>\n\n\n\n<p>Es la opci\u00f3n m\u00e1s pr\u00e1ctica si utilizas varios dispositivos. Muchos clientes tambi\u00e9n guardan una copia temporal para consultar parte del correo sin conexi\u00f3n, pero los cambios se sincronizan cuando vuelves a conectarte.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-pop3\">POP3<\/h3>\n\n\n\n<p>POP3 descarga los mensajes desde el servidor al programa de correo. Su funcionamiento se orienta a guardar el correo de forma local, por lo que la sincronizaci\u00f3n entre dispositivos es muy limitada.<\/p>\n\n\n\n<p><strong>POP3 no elimina siempre los mensajes del servidor.<\/strong> Algunos programas los borran despu\u00e9s de descargarlos, mientras que otros permiten conservar una copia durante unos d\u00edas o de forma indefinida.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-smtp\">SMTP<\/h3>\n\n\n\n<p>SMTP se utiliza para enviar el correo desde tu programa al servidor de salida. Tambi\u00e9n interviene en el transporte de mensajes entre servidores de correo.<\/p>\n\n\n\n<p>El servidor SMTP suele exigir usuario, contrase\u00f1a y una conexi\u00f3n cifrada. Si puedes recibir mensajes pero no enviarlos, conviene revisar primero esta configuraci\u00f3n.<\/p>\n\n\n\n<!-- BLOQUE: para-que-sirven-imap-pop3-y-smtp -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-102,\n#comp-ld-102 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-102 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-102 .ld-grid {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 16px;\n}\n\n#comp-ld-102 .ld-card {\n  position: relative;\n  padding: 24px 20px;\n  border-radius: 20px;\n  background: linear-gradient(160deg, #37363d, #2f2e35);\n  border: 1px solid rgba(255, 255, 255, 0.08);\n  overflow: hidden;\n  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    border-color 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    box-shadow 400ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-102 .ld-card:hover {\n  transform: translateY(-3px);\n  border-color: rgba(255, 255, 255, 0.16);\n  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);\n}\n\n#comp-ld-102 .ld-card::before {\n  content: '';\n  position: absolute;\n  top: 0;\n  left: 0;\n  right: 0;\n  height: 3px;\n}\n\n#comp-ld-102 .ld-card:nth-child(1)::before {\n  background: #00bcdf;\n}\n\n#comp-ld-102 .ld-card:nth-child(2)::before {\n  background: #db7424;\n}\n\n#comp-ld-102 .ld-card:nth-child(3)::before {\n  background: #198754;\n}\n\n#comp-ld-102 .ld-card-icon {\n  width: 44px;\n  height: 44px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  border-radius: 12px;\n  margin-bottom: 14px;\n}\n\n#comp-ld-102 .ld-card:nth-child(1) .ld-card-icon {\n  background: rgba(0, 188, 223, 0.15);\n  color: #00bcdf;\n}\n\n#comp-ld-102 .ld-card:nth-child(2) .ld-card-icon {\n  background: rgba(219, 116, 36, 0.15);\n  color: #db7424;\n}\n\n#comp-ld-102 .ld-card:nth-child(3) .ld-card-icon {\n  background: rgba(25, 135, 84, 0.15);\n  color: #198754;\n}\n\n#comp-ld-102 .ld-card-icon svg {\n  width: 24px;\n  height: 24px;\n}\n\n#comp-ld-102 .ld-card-tag {\n  display: inline-block;\n  margin-bottom: 6px;\n  font-size: 0.68rem;\n  font-weight: 700;\n  letter-spacing: 0.1em;\n  text-transform: uppercase;\n  color: rgba(255, 255, 255, 0.45);\n}\n\n#comp-ld-102 .ld-card-name {\n  font-size: 1.18rem;\n  font-weight: 800;\n  color: #ffffff;\n  margin-bottom: 8px;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-102 .ld-card-desc {\n  margin: 0;\n  font-size: 0.86rem;\n  color: rgba(255, 255, 255, 0.7);\n  line-height: 1.55;\n}\n\n#comp-ld-102 .ld-card-role {\n  margin-top: 14px;\n  display: inline-flex;\n  align-items: center;\n  gap: 6px;\n  padding: 4px 10px;\n  border-radius: 999px;\n  font-size: 0.74rem;\n  font-weight: 700;\n}\n\n#comp-ld-102 .ld-card:nth-child(1) .ld-card-role {\n  background: rgba(0, 188, 223, 0.12);\n  color: #00bcdf;\n}\n\n#comp-ld-102 .ld-card:nth-child(2) .ld-card-role {\n  background: rgba(219, 116, 36, 0.12);\n  color: #db7424;\n}\n\n#comp-ld-102 .ld-card:nth-child(3) .ld-card-role {\n  background: rgba(25, 135, 84, 0.12);\n  color: #198754;\n}\n\n@media (max-width: 680px) {\n  #comp-ld-102 .ld-grid {\n    grid-template-columns: 1fr;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-102 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-102\">\n  <div class=\"ld-grid\">\n    <div class=\"ld-card\">\n      <div class=\"ld-card-icon\">\n        <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M7 9l5-5 5 5\"\/><path d=\"M12 4v12\"\/><path d=\"M4 18c2 2 5 3 8 3s6-1 8-3\"\/><\/svg>\n      <\/div>\n      <span class=\"ld-card-tag\">Entrante<\/span>\n      <div class=\"ld-card-name\">IMAP<\/div>\n      <p class=\"ld-card-desc\">Recibe el correo y mantiene sincronizados los mensajes y las carpetas entre tus dispositivos.<\/p>\n      <span class=\"ld-card-role\">Recibir y sincronizar<\/span>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-card-icon\">\n        <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12 3v12\"\/><path d=\"M7 10l5 5 5-5\"\/><path d=\"M4 20h16\"\/><\/svg>\n      <\/div>\n      <span class=\"ld-card-tag\">Entrante<\/span>\n      <div class=\"ld-card-name\">POP3<\/div>\n      <p class=\"ld-card-desc\">Descarga los mensajes en el dispositivo. La sincronizaci\u00f3n entre dispositivos es muy limitada.<\/p>\n      <span class=\"ld-card-role\">Descargar<\/span>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-card-icon\">\n        <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12 13l-5 5-5-5\"\/><path d=\"M12 5l5 5 5-5\"\/><path d=\"M12 18V7\"\/><\/svg>\n      <\/div>\n      <span class=\"ld-card-tag\">Saliente<\/span>\n      <div class=\"ld-card-name\">SMTP<\/div>\n      <p class=\"ld-card-desc\">Env\u00eda los mensajes desde tu programa al servidor de salida. No sustituye a IMAP ni a POP3.<\/p>\n      <span class=\"ld-card-role\">Enviar<\/span>\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: para-que-sirven-imap-pop3-y-smtp -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-diferencias-entre-imap-y-pop3\">Diferencias entre IMAP y POP3<\/h2>\n\n\n\n<p>La <strong>diferencia entre IMAP y POP3<\/strong> est\u00e1 en la forma de guardar y gestionar los mensajes. IMAP trabaja principalmente con el buz\u00f3n del servidor. POP3 descarga el correo al dispositivo.<\/p>\n\n\n\n<!-- BLOQUE: diferencias-entre-imap-y-pop3 -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-103,\n#comp-ld-103 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-103 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-103 .ld-shell {\n  position: relative;\n  padding: clamp(20px, 4vw, 32px);\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 24px;\n  background: #ffffff;\n  box-shadow: 0 12px 40px rgba(55, 54, 61, 0.06);\n}\n\n#comp-ld-103 .ld-head {\n  display: grid;\n  grid-template-columns: 1.4fr 1fr 1fr;\n  gap: 14px;\n  padding-bottom: 16px;\n  border-bottom: 1px solid rgba(55, 54, 61, 0.08);\n  margin-bottom: 8px;\n  align-items: center;\n}\n\n#comp-ld-103 .ld-head-label {\n  font-size: 0.72rem;\n  font-weight: 700;\n  letter-spacing: 0.1em;\n  text-transform: uppercase;\n  color: rgba(55, 54, 61, 0.5);\n}\n\n#comp-ld-103 .ld-head-prot {\n  text-align: center;\n}\n\n#comp-ld-103 .ld-head-prot-name {\n  font-size: 1.1rem;\n  font-weight: 800;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-103 .ld-prot-imap {\n  color: #00bcdf;\n}\n\n#comp-ld-103 .ld-prot-pop {\n  color: #db7424;\n}\n\n#comp-ld-103 .ld-row {\n  display: grid;\n  grid-template-columns: 1.4fr 1fr 1fr;\n  gap: 14px;\n  padding: 14px 0;\n  border-bottom: 1px solid rgba(55, 54, 61, 0.06);\n  align-items: center;\n  transition: background 250ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-103 .ld-row:last-child {\n  border-bottom: none;\n}\n\n#comp-ld-103 .ld-row:hover {\n  background: rgba(244, 244, 246, 0.7);\n}\n\n#comp-ld-103 .ld-axis {\n  display: flex;\n  align-items: center;\n  gap: 10px;\n  font-size: 0.84rem;\n  font-weight: 700;\n  color: #37363d;\n}\n\n#comp-ld-103 .ld-axis-icon {\n  flex: 0 0 auto;\n  width: 30px;\n  height: 30px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  border-radius: 9px;\n  background: rgba(55, 54, 61, 0.06);\n  color: rgba(55, 54, 61, 0.6);\n}\n\n#comp-ld-103 .ld-axis-icon svg {\n  width: 17px;\n  height: 17px;\n}\n\n#comp-ld-103 .ld-val {\n  font-size: 0.82rem;\n  color: rgba(55, 54, 61, 0.72);\n  line-height: 1.4;\n  text-align: center;\n  font-weight: 600;\n}\n\n#comp-ld-103 .ld-val-yes {\n  display: inline-flex;\n  align-items: center;\n  gap: 5px;\n  padding: 3px 9px;\n  border-radius: 999px;\n  background: rgba(25, 135, 84, 0.1);\n  color: #198754;\n  font-weight: 700;\n}\n\n#comp-ld-103 .ld-val-no {\n  display: inline-flex;\n  align-items: center;\n  gap: 5px;\n  padding: 3px 9px;\n  border-radius: 999px;\n  background: rgba(219, 116, 36, 0.1);\n  color: #b85f1d;\n  font-weight: 700;\n}\n\n@media (max-width: 680px) {\n  #comp-ld-103 .ld-head,\n  #comp-ld-103 .ld-row {\n    grid-template-columns: 1fr;\n    gap: 6px;\n  }\n  #comp-ld-103 .ld-head-label {\n    display: none;\n  }\n  #comp-ld-103 .ld-head-prot {\n    text-align: left;\n    font-size: 0.9rem;\n  }\n  #comp-ld-103 .ld-val {\n    text-align: left;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-103 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-103\">\n  <div class=\"ld-shell\">\n    <div class=\"ld-head\">\n      <div class=\"ld-head-label\">Caracter\u00edstica<\/div>\n      <div class=\"ld-head-prot ld-prot-imap\">IMAP<\/div>\n      <div class=\"ld-head-prot ld-prot-pop\">POP3<\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"2\" y=\"3\" width=\"14\" height=\"11\" rx=\"1.5\"\/><rect x=\"15\" y=\"9\" width=\"7\" height=\"11\" rx=\"1.5\"\/><\/svg><\/span>\n        Dispositivos\n      <\/div>\n      <div class=\"ld-val\">Varios<\/div>\n      <div class=\"ld-val\">Uno principal<\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><ellipse cx=\"12\" cy=\"5\" rx=\"9\" ry=\"3\"\/><path d=\"M3 5v14c0 1.66 4 3 9 3s9-1.34 9-3V5\"\/><\/svg><\/span>\n        D\u00f3nde vive el correo\n      <\/div>\n      <div class=\"ld-val\">Servidor<\/div>\n      <div class=\"ld-val\">Tu equipo local<\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M21 12a9 9 0 1 1-9-9\"\/><path d=\"M21 3v6h-6\"\/><\/svg><\/span>\n        Sincroniza carpetas\n      <\/div>\n      <div class=\"ld-val\"><span class=\"ld-val-yes\">S\u00ed<\/span><\/div>\n      <div class=\"ld-val\"><span class=\"ld-val-no\">No<\/span><\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M2 12s3-7 10-7 10 7 10 7-3 7-10 7-10-7-10-7Z\"\/><circle cx=\"12\" cy=\"12\" r=\"3\"\/><\/svg><\/span>\n        Estado le\u00eddo\/no le\u00eddo\n      <\/div>\n      <div class=\"ld-val\">Se sincroniza<\/div>\n      <div class=\"ld-val\">Por equipo<\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M22 2 11 13\"\/><path d=\"M22 2 15 22l-4-9-9-4Z\"\/><\/svg><\/span>\n        Enviados\n      <\/div>\n      <div class=\"ld-val\">Pueden sincronizarse<\/div>\n      <div class=\"ld-val\">Quedan en el dispositivo<\/div>\n    <\/div>\n    <div class=\"ld-row\">\n      <div class=\"ld-axis\">\n        <span class=\"ld-axis-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16Z\"\/><\/svg><\/span>\n        Espacio en servidor\n      <\/div>\n      <div class=\"ld-val\">Consume mientras se conservan<\/div>\n      <div class=\"ld-val\">Puede reducirse<\/div>\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: diferencias-entre-imap-y-pop3 -->\n\n\n\n<p>IMAP no es una copia de seguridad por s\u00ed mismo. Si eliminas un mensaje y el cambio se sincroniza, puede desaparecer en todos tus dispositivos. Mant\u00e9n las copias de seguridad que ofrezca tu proveedor.<\/p>\n\n\n\n<p>Con POP3, revisa d\u00f3nde quedan almacenados los mensajes y haz copias del equipo. Un fallo del disco puede afectar al \u00fanico lugar donde se conserva el correo descargado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-como-configurar-una-cuenta-de-correo\">C\u00f3mo configurar una cuenta de correo<\/h2>\n\n\n\n<p>Antes de comenzar, crea la cuenta en el panel de tu proveedor y re\u00fane estos datos:<\/p>\n\n\n\n<ul>\n<li>Direcci\u00f3n de correo completa.<\/li>\n\n\n\n<li>Contrase\u00f1a de la cuenta.<\/li>\n\n\n\n<li>Nombre del servidor de correo entrante.<\/li>\n\n\n\n<li>Nombre del servidor SMTP o de correo saliente.<\/li>\n\n\n\n<li>Protocolo elegido: IMAP o POP3.<\/li>\n\n\n\n<li>Puertos y tipo de cifrado.<\/li>\n\n\n\n<li>Requisito de autenticaci\u00f3n para SMTP.<\/li>\n<\/ul>\n\n\n\n<p>En un servicio gestionado con <strong>Plesk<\/strong>, empieza por la interfaz visual. Accede a <strong>Correo<\/strong>, comprueba que la direcci\u00f3n existe y revisa los datos facilitados para conectar un dispositivo. El nombre del servidor puede tener un formato como <code>mail.tudominio.es<\/code>, pero debes usar el valor indicado por tu proveedor.<\/p>\n\n\n\n<p>Despu\u00e9s, sigue estos pasos:<\/p>\n\n\n\n<!-- BLOQUE: como-configurar-una-cuenta-de-correo -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-105,\n#comp-ld-105 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-105 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-105 .ld-shell {\n  position: relative;\n  padding: clamp(22px, 4vw, 34px);\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 24px;\n  background: #ffffff;\n  box-shadow: 0 12px 40px rgba(55, 54, 61, 0.06);\n}\n\n#comp-ld-105 .ld-steps {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  gap: 0;\n}\n\n#comp-ld-105 .ld-step {\n  position: relative;\n  display: grid;\n  grid-template-columns: 48px 1fr;\n  gap: 16px;\n  padding: 14px 0;\n}\n\n#comp-ld-105 .ld-step:not(:last-child)::before {\n  content: '';\n  position: absolute;\n  top: 44px;\n  left: 23px;\n  bottom: -14px;\n  width: 2px;\n  background: linear-gradient(180deg, rgba(219, 116, 36, 0.3), rgba(0, 188, 223, 0.2));\n}\n\n#comp-ld-105 .ld-step-num {\n  flex: 0 0 auto;\n  width: 48px;\n  height: 48px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  border-radius: 14px;\n  background: linear-gradient(145deg, #37363d, #2f2e35);\n  color: #ffffff;\n  font-size: 1.05rem;\n  font-weight: 800;\n  box-shadow: 0 6px 18px rgba(55, 54, 61, 0.18);\n}\n\n#comp-ld-105 .ld-step-body {\n  padding-top: 6px;\n}\n\n#comp-ld-105 .ld-step-title {\n  font-size: 0.95rem;\n  font-weight: 700;\n  color: #37363d;\n  line-height: 1.35;\n  margin-bottom: 4px;\n}\n\n#comp-ld-105 .ld-step-desc {\n  font-size: 0.82rem;\n  color: rgba(55, 54, 61, 0.62);\n  line-height: 1.5;\n}\n\n#comp-ld-105 .ld-note {\n  margin-top: 18px;\n  padding: 14px 16px;\n  border-radius: 14px;\n  background: rgba(0, 188, 223, 0.06);\n  border-left: 3px solid #00bcdf;\n  font-size: 0.82rem;\n  color: rgba(55, 54, 61, 0.78);\n  line-height: 1.55;\n  font-weight: 600;\n}\n\n#comp-ld-105 .ld-note strong {\n  color: #0891b2;\n  font-weight: 800;\n}\n\n@media (max-width: 520px) {\n  #comp-ld-105 .ld-step {\n    grid-template-columns: 40px 1fr;\n    gap: 12px;\n  }\n  #comp-ld-105 .ld-step-num {\n    width: 40px;\n    height: 40px;\n    font-size: 0.92rem;\n  }\n  #comp-ld-105 .ld-step:not(:last-child)::before {\n    left: 19px;\n    top: 38px;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-105 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-105\">\n  <div class=\"ld-shell\">\n    <div class=\"ld-steps\">\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">1<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Abre la opci\u00f3n para a\u00f1adir una cuenta<\/div>\n          <p class=\"ld-step-desc\">En tu programa de correo, busca la opci\u00f3n de nueva cuenta.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">2<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Introduce la direcci\u00f3n completa y la contrase\u00f1a<\/div>\n          <p class=\"ld-step-desc\">El usuario suele ser la direcci\u00f3n entera, no solo la parte anterior a @.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">3<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Prueba primero la configuraci\u00f3n autom\u00e1tica<\/div>\n          <p class=\"ld-step-desc\">Muchos clientes detectan los servidores y puertos sin intervenci\u00f3n manual.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">4<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Si configuras a mano, elige IMAP<\/div>\n          <p class=\"ld-step-desc\">Es la opci\u00f3n adecuada en la mayor\u00eda de los casos de uso.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">5<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Introduce el servidor entrante y su puerto seguro<\/div>\n          <p class=\"ld-step-desc\">Usa el valor que indique tu proveedor para IMAP o POP3.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">6<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Introduce el servidor SMTP con autenticaci\u00f3n<\/div>\n          <p class=\"ld-step-desc\">Activa la autenticaci\u00f3n y usa el puerto seguro para el env\u00edo.<\/p>\n        <\/div>\n      <\/div>\n      <div class=\"ld-step\">\n        <div class=\"ld-step-num\">7<\/div>\n        <div class=\"ld-step-body\">\n          <div class=\"ld-step-title\">Env\u00eda un mensaje de prueba<\/div>\n          <p class=\"ld-step-desc\">Comprueba que puedes enviar y tambi\u00e9n recibir.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div class=\"ld-note\">\n      <strong>Recuerda:<\/strong> en un panel con Plesk, empieza por la interfaz visual de Correo para comprobar que la cuenta existe antes de configurar el dispositivo.\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: como-configurar-una-cuenta-de-correo -->\n\n\n\n<p>El nombre de usuario suele ser la <strong>direcci\u00f3n de correo completa<\/strong>, no solo la parte anterior a <code>@<\/code>. Si utilizas el cliente de Microsoft, puedes consultar esta gu\u00eda para <a href=\"https:\/\/www.loading.es\/blog\/configurar-correo-outlook\/\" target=\"_blank\" rel=\"noopener\" title=\"\">configurar el correo en Outlook<\/a>.<\/p>\n\n\n\n<p>No desactives el cifrado para corregir un error sin comprobar antes los datos. Una combinaci\u00f3n incorrecta de puerto y seguridad puede impedir la conexi\u00f3n aunque el servidor y la contrase\u00f1a sean correctos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-puertos-habituales-de-imap-pop3-y-smtp\">Puertos habituales de IMAP, POP3 y SMTP<\/h2>\n\n\n\n<p>Los <strong>puertos de correo<\/strong> indican al programa qu\u00e9 servicio debe utilizar y c\u00f3mo iniciar la conexi\u00f3n. Siempre que est\u00e9 disponible, usa una opci\u00f3n cifrada mediante <strong>TLS<\/strong>.<\/p>\n\n\n\n<p><strong>TLS impl\u00edcito<\/strong> cifra la conexi\u00f3n desde el inicio. Con <strong>STARTTLS<\/strong>, la conexi\u00f3n comienza en el puerto indicado y pasa a estar cifrada antes de enviar las credenciales y el mensaje.<\/p>\n\n\n\n<p>Los valores de esta tabla son habituales, pero <strong>prevalece siempre la configuraci\u00f3n de tu proveedor<\/strong>. No combines, por ejemplo, el puerto 993 con POP3 ni el 995 con IMAP.<\/p>\n\n\n\n<!-- BLOQUE: puertos-habituales-de-imap-pop3-y-smtp -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-106,\n#comp-ld-106 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-106 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-106 .ld-shell {\n  position: relative;\n  padding: clamp(22px, 4vw, 32px);\n  border-radius: 24px;\n  background: linear-gradient(160deg, #37363d, #2b2a31);\n  border: 1px solid rgba(255, 255, 255, 0.08);\n  box-shadow: 0 16px 48px rgba(55, 54, 61, 0.22);\n  overflow: hidden;\n}\n\n#comp-ld-106 .ld-shell::before {\n  content: '';\n  position: absolute;\n  top: -40px;\n  right: -40px;\n  width: 180px;\n  height: 180px;\n  border-radius: 50%;\n  background: radial-gradient(circle, rgba(0, 188, 223, 0.12), transparent 70%);\n  pointer-events: none;\n}\n\n#comp-ld-106 .ld-eyebrow {\n  display: inline-flex;\n  align-items: center;\n  gap: 8px;\n  margin-bottom: 14px;\n  padding: 5px 12px;\n  border-radius: 999px;\n  background: rgba(0, 188, 223, 0.12);\n  color: #00bcdf;\n  font-size: 0.7rem;\n  font-weight: 700;\n  letter-spacing: 0.12em;\n  text-transform: uppercase;\n}\n\n#comp-ld-106 .ld-title {\n  font-size: 1.18rem;\n  font-weight: 800;\n  color: #ffffff;\n  margin-bottom: 6px;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-106 .ld-sub {\n  margin: 0 0 22px;\n  font-size: 0.86rem;\n  color: rgba(255, 255, 255, 0.6);\n  line-height: 1.55;\n}\n\n#comp-ld-106 .ld-grid {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 14px;\n}\n\n#comp-ld-106 .ld-proto {\n  position: relative;\n  padding: 18px 16px;\n  border-radius: 16px;\n  background: rgba(255, 255, 255, 0.04);\n  border: 1px solid rgba(255, 255, 255, 0.08);\n  transition: border-color 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    transform 300ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-106 .ld-proto:hover {\n  border-color: rgba(0, 188, 223, 0.4);\n  transform: translateY(-2px);\n}\n\n#comp-ld-106 .ld-proto-name {\n  font-size: 1.1rem;\n  font-weight: 800;\n  margin-bottom: 12px;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-106 .ld-proto:nth-child(1) .ld-proto-name {\n  color: #00bcdf;\n}\n\n#comp-ld-106 .ld-proto:nth-child(2) .ld-proto-name {\n  color: #db7424;\n}\n\n#comp-ld-106 .ld-proto:nth-child(3) .ld-proto-name {\n  color: #198754;\n}\n\n#comp-ld-106 .ld-port-row {\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  padding: 8px 0;\n  border-top: 1px solid rgba(255, 255, 255, 0.06);\n}\n\n#comp-ld-106 .ld-port-row:first-of-type {\n  border-top: none;\n}\n\n#comp-ld-106 .ld-port-num {\n  font-size: 1.2rem;\n  font-weight: 800;\n  color: #ffffff;\n  font-variant-numeric: tabular-nums;\n}\n\n#comp-ld-106 .ld-port-sec {\n  font-size: 0.72rem;\n  font-weight: 700;\n  color: rgba(255, 255, 255, 0.55);\n  text-align: right;\n  line-height: 1.3;\n}\n\n#comp-ld-106 .ld-port-sec-safe {\n  color: #00bcdf;\n}\n\n#comp-ld-106 .ld-tip {\n  margin-top: 18px;\n  padding: 12px 16px;\n  border-radius: 12px;\n  background: rgba(0, 188, 223, 0.08);\n  border-left: 3px solid #00bcdf;\n  font-size: 0.8rem;\n  color: rgba(255, 255, 255, 0.72);\n  line-height: 1.5;\n  font-weight: 600;\n}\n\n@media (max-width: 680px) {\n  #comp-ld-106 .ld-grid {\n    grid-template-columns: 1fr;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-106 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-106\">\n  <div class=\"ld-shell\">\n    <span class=\"ld-eyebrow\">Referencia r\u00e1pida<\/span>\n    <div class=\"ld-title\">Puertos seguros habituales<\/div>\n    <p class=\"ld-sub\">Usa siempre una opci\u00f3n cifrada TLS cuando est\u00e9 disponible.<\/p>\n    <div class=\"ld-grid\">\n      <div class=\"ld-proto\">\n        <div class=\"ld-proto-name\">IMAP<\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">993<\/span>\n          <span class=\"ld-port-sec ld-port-sec-safe\">TLS impl\u00edcito<\/span>\n        <\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">143<\/span>\n          <span class=\"ld-port-sec\">STARTTLS o sin cifrar<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"ld-proto\">\n        <div class=\"ld-proto-name\">POP3<\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">995<\/span>\n          <span class=\"ld-port-sec ld-port-sec-safe\">TLS impl\u00edcito<\/span>\n        <\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">110<\/span>\n          <span class=\"ld-port-sec\">STARTTLS o sin cifrar<\/span>\n        <\/div>\n      <\/div>\n      <div class=\"ld-proto\">\n        <div class=\"ld-proto-name\">SMTP<\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">587<\/span>\n          <span class=\"ld-port-sec ld-port-sec-safe\">STARTTLS<\/span>\n        <\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">465<\/span>\n          <span class=\"ld-port-sec ld-port-sec-safe\">TLS impl\u00edcito<\/span>\n        <\/div>\n        <div class=\"ld-port-row\">\n          <span class=\"ld-port-num\">25<\/span>\n          <span class=\"ld-port-sec\">Entre servidores<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div class=\"ld-tip\">\n      Prevalece siempre la configuraci\u00f3n de tu proveedor: no combines el puerto 993 con POP3 ni el 995 con IMAP.\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: puertos-habituales-de-imap-pop3-y-smtp -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-otros-terminos-relacionados-con-el-correo-electronico\">Otros t\u00e9rminos relacionados con el correo electr\u00f3nico<\/h2>\n\n\n\n<p>Adem\u00e1s de IMAP, POP3 y SMTP, puedes encontrar MX, SPF, DKIM y DMARC en la configuraci\u00f3n DNS de tu dominio. Est\u00e1n relacionados con el correo, pero <strong>no todos son protocolos de acceso a un buz\u00f3n<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-mx\">MX<\/h3>\n\n\n\n<p>Un registro <strong>MX<\/strong> indica qu\u00e9 servidores deben recibir los mensajes dirigidos a un dominio. Es un <strong>registro DNS<\/strong>, no un protocolo de correo.<\/p>\n\n\n\n<p>Un dominio puede tener varios registros MX con distintas prioridades. El servidor remitente intenta entregar el mensaje siguiendo ese orden.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-spf\">SPF<\/h3>\n\n\n\n<p><strong>SPF<\/strong> se publica mediante un registro TXT en el DNS. Define qu\u00e9 servidores est\u00e1n autorizados para enviar correo en nombre del dominio.<\/p>\n\n\n\n<p>Una configuraci\u00f3n incorrecta puede hacer que los mensajes leg\u00edtimos fallen la comprobaci\u00f3n. Tambi\u00e9n conviene evitar varios registros SPF separados para un mismo dominio.<\/p>\n\n\n\n<!-- BLOQUE: otros-terminos-relacionados-con-el-correo-electronico -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-108,\n#comp-ld-108 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-108 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-108 .ld-grid {\n  display: grid;\n  grid-template-columns: repeat(2, 1fr);\n  gap: 14px;\n}\n\n#comp-ld-108 .ld-card {\n  position: relative;\n  padding: 20px 18px;\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 18px;\n  background: #ffffff;\n  box-shadow: 0 8px 28px rgba(55, 54, 61, 0.05);\n  transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1),\n    box-shadow 350ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-108 .ld-card:hover {\n  transform: translateY(-2px);\n  box-shadow: 0 14px 36px rgba(0, 188, 223, 0.1);\n}\n\n#comp-ld-108 .ld-card-head {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  margin-bottom: 10px;\n}\n\n#comp-ld-108 .ld-card-name {\n  font-size: 1.05rem;\n  font-weight: 800;\n  color: #37363d;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-108 .ld-type {\n  display: inline-flex;\n  align-items: center;\n  gap: 5px;\n  padding: 3px 10px;\n  border-radius: 999px;\n  font-size: 0.68rem;\n  font-weight: 700;\n  letter-spacing: 0.04em;\n}\n\n#comp-ld-108 .ld-type-dns {\n  background: rgba(0, 188, 223, 0.1);\n  color: #0891b2;\n}\n\n#comp-ld-108 .ld-type-txt {\n  background: rgba(219, 116, 36, 0.1);\n  color: #b85f1d;\n}\n\n#comp-ld-108 .ld-type-policy {\n  background: rgba(25, 135, 84, 0.1);\n  color: #198754;\n}\n\n#comp-ld-108 .ld-card-desc {\n  margin: 0;\n  font-size: 0.84rem;\n  color: rgba(55, 54, 61, 0.68);\n  line-height: 1.55;\n}\n\n@media (max-width: 580px) {\n  #comp-ld-108 .ld-grid {\n    grid-template-columns: 1fr;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-108 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-108\">\n  <div class=\"ld-grid\">\n    <div class=\"ld-card\">\n      <div class=\"ld-card-head\">\n        <span class=\"ld-card-name\">MX<\/span>\n        <span class=\"ld-type ld-type-dns\">Registro DNS<\/span>\n      <\/div>\n      <p class=\"ld-card-desc\">Indica qu\u00e9 servidores deben recibir los mensajes dirigidos a un dominio. No es un protocolo.<\/p>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-card-head\">\n        <span class=\"ld-card-name\">SPF<\/span>\n        <span class=\"ld-type ld-type-txt\">Registro TXT<\/span>\n      <\/div>\n      <p class=\"ld-card-desc\">Define qu\u00e9 servidores est\u00e1n autorizados para enviar correo en nombre del dominio.<\/p>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-card-head\">\n        <span class=\"ld-card-name\">DKIM<\/span>\n        <span class=\"ld-type ld-type-txt\">Registro TXT<\/span>\n      <\/div>\n      <p class=\"ld-card-desc\">A\u00f1ade una firma criptogr\u00e1fica al mensaje para comprobar su integridad y el dominio firmante.<\/p>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-card-head\">\n        <span class=\"ld-card-name\">DMARC<\/span>\n        <span class=\"ld-type ld-type-policy\">Pol\u00edtica<\/span>\n      <\/div>\n      <p class=\"ld-card-desc\">Comprueba la alineaci\u00f3n de SPF y DKIM y define qu\u00e9 hacer cuando las comprobaciones fallan.<\/p>\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: otros-terminos-relacionados-con-el-correo-electronico -->\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-dkim\">DKIM<\/h3>\n\n\n\n<p><strong>DKIM<\/strong> a\u00f1ade al mensaje una firma criptogr\u00e1fica asociada al dominio. El servidor receptor consulta la clave p\u00fablica publicada en el DNS para comprobar la firma y detectar si las partes firmadas han sido modificadas.<\/p>\n\n\n\n<p>DKIM no cifra el contenido del mensaje. Su funci\u00f3n es ayudar a comprobar su integridad y el dominio que lo ha firmado.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-dmarc\">DMARC<\/h3>\n\n\n\n<p><strong>DMARC<\/strong> utiliza los resultados de SPF y DKIM y comprueba su alineaci\u00f3n con el dominio visible del remitente. Tambi\u00e9n permite indicar qu\u00e9 debe hacer el receptor cuando las comprobaciones fallan y enviar informes al propietario del dominio.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<!-- BLOQUE: cita-eeat-incibe -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-109,\n#comp-ld-109 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-109 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\n}\n\n#comp-ld-109 .ld-quote-shell {\n  position: relative;\n  overflow: hidden;\n  padding: clamp(22px, 3vw, 30px) clamp(22px, 4vw, 34px) clamp(20px, 3vw, 28px) clamp(26px, 4vw, 40px);\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 24px;\n  background: #ffffff;\n  box-shadow: 0 20px 50px rgba(0, 188, 223, 0.08), 0 8px 24px rgba(55, 54, 61, 0.05);\n}\n\n#comp-ld-109 .ld-quote-shell::before {\n  content: '';\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  left: 0;\n  width: 6px;\n  background: linear-gradient(180deg, #00bcdf 0%, #db7424 100%);\n}\n\n#comp-ld-109 .ld-quote-shell::after {\n  content: '\\201C';\n  position: absolute;\n  top: 14px;\n  right: 24px;\n  color: rgba(0, 188, 223, 0.14);\n  font-size: 5.4rem;\n  font-weight: 800;\n  line-height: 1;\n  pointer-events: none;\n  font-family: Georgia, 'Times New Roman', serif;\n}\n\n#comp-ld-109 .ld-source-badge {\n  position: relative;\n  z-index: 1;\n  display: inline-flex;\n  gap: 8px;\n  align-items: center;\n  margin-bottom: 12px;\n  color: #0891b2;\n  font-size: 0.72rem;\n  font-weight: 800;\n  letter-spacing: 0.14em;\n  line-height: 1;\n  text-transform: uppercase;\n}\n\n#comp-ld-109 .ld-source-badge::before {\n  content: '';\n  width: 8px;\n  height: 8px;\n  border-radius: 50%;\n  background: #00bcdf;\n  box-shadow: 0 0 0 5px rgba(0, 188, 223, 0.1);\n}\n\n#comp-ld-109 .ld-source-name {\n  position: relative;\n  z-index: 1;\n  margin-bottom: 12px;\n  color: #37363d;\n  font-size: clamp(1.05rem, 0.8vw + 0.95rem, 1.25rem);\n  font-weight: 800;\n  letter-spacing: -0.02em;\n  line-height: 1.25;\n}\n\n#comp-ld-109 .ld-quote-text {\n  position: relative;\n  z-index: 1;\n  max-width: 850px;\n  margin: 0 0 18px;\n  color: rgba(55, 54, 61, 0.78);\n  font-size: clamp(1rem, 0.5vw + 0.95rem, 1.1rem);\n  font-weight: 600;\n  line-height: 1.65;\n}\n\n#comp-ld-109 .ld-source-link {\n  position: relative;\n  z-index: 1;\n  display: inline-flex;\n  gap: 9px;\n  align-items: center;\n  color: #b85f1d;\n  font-size: 0.86rem;\n  font-weight: 800;\n  line-height: 1.4;\n  text-decoration: none;\n  transition: color 200ms cubic-bezier(0.16, 1, 0.3, 1), transform 200ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-109 .ld-source-link:hover {\n  color: #8f4a16;\n  transform: translateX(2px);\n}\n\n#comp-ld-109 .ld-source-link:focus-visible {\n  outline: 3px solid rgba(219, 116, 36, 0.22);\n  outline-offset: 4px;\n  border-radius: 8px;\n}\n\n#comp-ld-109 .ld-source-link svg {\n  flex: 0 0 auto;\n  width: 19px;\n  height: 19px;\n  color: #db7424;\n}\n\n@media (max-width: 520px) {\n  #comp-ld-109 .ld-quote-shell {\n    padding: 22px 20px 20px 24px;\n    border-radius: 20px;\n  }\n\n  #comp-ld-109 .ld-quote-shell::after {\n    right: 16px;\n    font-size: 4.2rem;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-109 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-109\">\n  <div class=\"ld-quote-shell\">\n    <div class=\"ld-source-badge\">Fuente oficial<\/div>\n    <div class=\"ld-source-name\">INCIBE<\/div>\n    <p class=\"ld-quote-text\">&ldquo;SPF, DKIM y DMARC aportan mecanismos de seguridad a nivel de dominio y proporcionan ayuda en la identificaci&oacute;n de los correos fraudulentos, contribuyendo significativamente en la lucha contra el phishing o el spam&rdquo;.<\/p>\n    <a class=\"ld-source-link\" href=\"https:\/\/www.incibe.es\/empresas\/blog\/tecnologia-y-formacion-proteger-tu-dominio-correo-electronico\" target=\"_blank\" aria-label=\"Consultar la gu&iacute;a de INCIBE sobre protecci&oacute;n del dominio de correo electr&oacute;nico\" rel=\"noopener\">\n      <svg viewBox=\"0 0 24 24\" stroke=\"currentColor\" fill=\"none\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M7 17 17 7\"\/><path d=\"M8 7h9v9\"\/><\/svg>\n      <span>Fuente: Gu&iacute;a de INCIBE sobre protecci&oacute;n del dominio<\/span>\n    <\/a>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: cita-eeat-incibe -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-otras-tecnologias-que-puedes-encontrar\">Otras tecnolog\u00edas que puedes encontrar<\/h2>\n\n\n\n<p>Hay otros t\u00e9rminos que aparecen en programas, servidores o certificados de correo. Son secundarios para una configuraci\u00f3n habitual, pero conviene reconocerlos.<\/p>\n\n\n\n<ul>\n<li><strong>ESMTP:<\/strong> es una ampliaci\u00f3n de SMTP. A\u00f1ade capacidades como autenticaci\u00f3n, negociaci\u00f3n de cifrado y otras extensiones anunciadas por el servidor.<\/li>\n\n\n\n<li><strong>MAPI:<\/strong> es una interfaz ligada principalmente a entornos Microsoft. Permite integrar correo, calendarios, contactos y otras funciones de colaboraci\u00f3n.<\/li>\n\n\n\n<li><strong>S\/MIME:<\/strong> es un est\u00e1ndar para firmar y cifrar mensajes mediante certificados digitales. Protege el contenido y permite comprobar la identidad asociada al certificado.<\/li>\n<\/ul>\n\n\n\n<p>Estas tecnolog\u00edas no sustituyen la elecci\u00f3n entre IMAP y POP3. Tampoco cumplen la misma funci\u00f3n que los registros DNS de autenticaci\u00f3n del dominio.<\/p>\n\n\n\n<!-- BLOQUE: otras-tecnologias-que-puedes-encontrar -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-110,\n#comp-ld-110 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-110 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-110 .ld-grid {\n  display: grid;\n  grid-template-columns: repeat(3, 1fr);\n  gap: 14px;\n}\n\n#comp-ld-110 .ld-card {\n  position: relative;\n  padding: 20px 18px;\n  border: 1px solid rgba(55, 54, 61, 0.1);\n  border-radius: 18px;\n  background: #f4f4f6;\n  overflow: hidden;\n  transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1),\n    box-shadow 350ms cubic-bezier(0.16, 1, 0.3, 1),\n    background 350ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-110 .ld-card:hover {\n  transform: translateY(-2px);\n  background: #ffffff;\n  box-shadow: 0 10px 32px rgba(55, 54, 61, 0.1);\n}\n\n#comp-ld-110 .ld-acronym {\n  font-size: 1.3rem;\n  font-weight: 800;\n  color: #37363d;\n  letter-spacing: -0.02em;\n  margin-bottom: 4px;\n}\n\n#comp-ld-110 .ld-full {\n  font-size: 0.74rem;\n  font-weight: 600;\n  color: rgba(55, 54, 61, 0.55);\n  margin-bottom: 10px;\n  line-height: 1.3;\n}\n\n#comp-ld-110 .ld-desc {\n  margin: 0;\n  font-size: 0.84rem;\n  color: rgba(55, 54, 61, 0.72);\n  line-height: 1.55;\n}\n\n#comp-ld-110 .ld-card::before {\n  content: '';\n  position: absolute;\n  top: 16px;\n  right: 16px;\n  width: 9px;\n  height: 9px;\n  border-radius: 50%;\n}\n\n#comp-ld-110 .ld-card:nth-child(1)::before {\n  background: #00bcdf;\n  box-shadow: 0 0 0 5px rgba(0, 188, 223, 0.12);\n}\n\n#comp-ld-110 .ld-card:nth-child(2)::before {\n  background: #db7424;\n  box-shadow: 0 0 0 5px rgba(219, 116, 36, 0.12);\n}\n\n#comp-ld-110 .ld-card:nth-child(3)::before {\n  background: #198754;\n  box-shadow: 0 0 0 5px rgba(25, 135, 84, 0.12);\n}\n\n@media (max-width: 680px) {\n  #comp-ld-110 .ld-grid {\n    grid-template-columns: 1fr;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-110 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-110\">\n  <div class=\"ld-grid\">\n    <div class=\"ld-card\">\n      <div class=\"ld-acronym\">ESMTP<\/div>\n      <div class=\"ld-full\">Extended SMTP<\/div>\n      <p class=\"ld-desc\">Ampliaci&oacute;n de SMTP con autenticaci&oacute;n, negociaci&oacute;n de cifrado y extensiones anunciadas por el servidor.<\/p>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-acronym\">MAPI<\/div>\n      <div class=\"ld-full\">Messaging Application Programming Interface<\/div>\n      <p class=\"ld-desc\">Interfaz ligada principalmente a entornos Microsoft para integrar correo, calendarios y contactos.<\/p>\n    <\/div>\n    <div class=\"ld-card\">\n      <div class=\"ld-acronym\">S\/MIME<\/div>\n      <div class=\"ld-full\">Secure MIME<\/div>\n      <p class=\"ld-desc\">Est&aacute;ndar para firmar y cifrar mensajes con certificados digitales.<\/p>\n    <\/div>\n  <\/div>\n<\/div>\n<!-- FIN BLOQUE: otras-tecnologias-que-puedes-encontrar -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-problemas-frecuentes-al-configurar-el-correo\">Problemas frecuentes al configurar el correo<\/h2>\n\n\n\n<p>La mayor\u00eda de los errores se deben a un dato incorrecto o a una combinaci\u00f3n incompatible de puerto y cifrado. Revisa la configuraci\u00f3n en este orden<\/p>\n\n\n\n<!-- BLOQUE: problemas-frecuentes-al-configurar-el-correo -->\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Manrope:wght@400;500;600;700;800&display=swap');\n\n#comp-ld-111,\n#comp-ld-111 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-111 {\n  color: inherit;\n  margin: 32px 0;\n  font-family: 'Manrope', system-ui, -apple-system, sans-serif;\n}\n\n#comp-ld-111 .ld-shell {\n  position: relative;\n  padding: clamp(22px, 4vw, 32px);\n  border-radius: 24px;\n  background: linear-gradient(160deg, #37363d, #2b2a31);\n  border: 1px solid rgba(255, 255, 255, 0.08);\n  box-shadow: 0 16px 48px rgba(55, 54, 61, 0.22);\n  overflow: hidden;\n}\n\n#comp-ld-111 .ld-shell::before {\n  content: '';\n  position: absolute;\n  bottom: -50px;\n  left: -50px;\n  width: 200px;\n  height: 200px;\n  border-radius: 50%;\n  background: radial-gradient(circle, rgba(219, 116, 36, 0.1), transparent 70%);\n  pointer-events: none;\n}\n\n#comp-ld-111 .ld-eyebrow {\n  display: inline-flex;\n  align-items: center;\n  gap: 8px;\n  margin-bottom: 14px;\n  padding: 5px 12px;\n  border-radius: 999px;\n  background: rgba(219, 116, 36, 0.12);\n  color: #db7424;\n  font-size: 0.7rem;\n  font-weight: 700;\n  letter-spacing: 0.12em;\n  text-transform: uppercase;\n}\n\n#comp-ld-111 .ld-title {\n  font-size: 1.18rem;\n  font-weight: 800;\n  color: #ffffff;\n  margin-bottom: 6px;\n  letter-spacing: -0.01em;\n}\n\n#comp-ld-111 .ld-sub {\n  margin: 0 0 20px;\n  font-size: 0.86rem;\n  color: rgba(255, 255, 255, 0.6);\n  line-height: 1.55;\n}\n\n#comp-ld-111 .ld-symptoms {\n  display: flex;\n  flex-direction: column;\n  gap: 8px;\n}\n\n#comp-ld-111 .ld-symptom {\n  position: relative;\n  display: flex;\n  align-items: center;\n  gap: 12px;\n  padding: 14px 16px;\n  border-radius: 14px;\n  background: rgba(255, 255, 255, 0.04);\n  border: 1px solid rgba(255, 255, 255, 0.06);\n  cursor: pointer;\n  text-align: left;\n  font-family: inherit;\n  font-size: inherit;\n  color: #ffffff;\n  transition: border-color 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    background 300ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-111 .ld-symptom:hover {\n  border-color: rgba(219, 116, 36, 0.4);\n  background: rgba(255, 255, 255, 0.06);\n}\n\n#comp-ld-111 .ld-symptom:focus-visible {\n  outline: 3px solid rgba(219, 116, 36, 0.3);\n  outline-offset: 2px;\n}\n\n#comp-ld-111 .ld-symptom[aria-expanded=\"true\"] {\n  border-color: #db7424;\n  background: rgba(219, 116, 36, 0.08);\n}\n\n#comp-ld-111 .ld-symptom-icon {\n  flex: 0 0 auto;\n  width: 34px;\n  height: 34px;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  border-radius: 10px;\n  background: rgba(219, 116, 36, 0.12);\n  color: #db7424;\n}\n\n#comp-ld-111 .ld-symptom-icon svg {\n  width: 19px;\n  height: 19px;\n}\n\n#comp-ld-111 .ld-symptom-label {\n  flex: 1 1 auto;\n  font-size: 0.9rem;\n  font-weight: 700;\n  line-height: 1.35;\n}\n\n#comp-ld-111 .ld-symptom-badge {\n  flex: 0 0 auto;\n  font-size: 0.72rem;\n  font-weight: 700;\n  color: rgba(255, 255, 255, 0.4);\n}\n\n#comp-ld-111 .ld-fix {\n  max-height: 0;\n  overflow: hidden;\n  opacity: 0;\n  transition: max-height 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    opacity 400ms cubic-bezier(0.16, 1, 0.3, 1),\n    margin 400ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-111 .ld-fix.is-open {\n  max-height: 260px;\n  opacity: 1;\n  margin: 8px 0 0 46px;\n}\n\n#comp-ld-111 .ld-fix-inner {\n  padding: 16px;\n  border-radius: 14px;\n  background: rgba(0, 188, 223, 0.06);\n  border-left: 3px solid #00bcdf;\n}\n\n#comp-ld-111 .ld-fix-cause {\n  display: flex;\n  align-items: flex-start;\n  gap: 8px;\n  margin-bottom: 8px;\n}\n\n#comp-ld-111 .ld-fix-tag {\n  flex: 0 0 auto;\n  font-size: 0.66rem;\n  font-weight: 800;\n  letter-spacing: 0.08em;\n  text-transform: uppercase;\n  color: #db7424;\n  padding-top: 2px;\n}\n\n#comp-ld-111 .ld-fix-text {\n  font-size: 0.82rem;\n  color: rgba(255, 255, 255, 0.78);\n  line-height: 1.5;\n  font-weight: 600;\n}\n\n#comp-ld-111 .ld-fix-text strong {\n  color: #ffffff;\n  font-weight: 800;\n}\n\n@media (max-width: 580px) {\n  #comp-ld-111 .ld-fix.is-open {\n    margin: 8px 0 0 0;\n  }\n  #comp-ld-111 .ld-symptom-badge {\n    display: none;\n  }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-111 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-111\">\n  <div class=\"ld-shell\">\n    <span class=\"ld-eyebrow\">Diagn&oacute;stico<\/span>\n    <div class=\"ld-title\">Selecciona tu s&iacute;ntoma<\/div>\n    <p class=\"ld-sub\">Pulsa un problema para ver la causa probable y la soluci&oacute;n.<\/p>\n    <div class=\"ld-symptoms\" role=\"tablist\" aria-label=\"Diagn&oacute;stico de problemas de correo\">\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix1\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\"\/><path d=\"M7 11V7a5 5 0 0 1 10 0v4\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">La contrase&ntilde;a no funciona<\/span>\n        <span class=\"ld-symptom-badge\">Acceso<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix1\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">Comprueba la contrase&ntilde;a desde el <strong>webmail<\/strong> o desde <strong>Plesk<\/strong> antes de cambiar otros valores. Escr&iacute;bela de nuevo y revisa que no se hayan a&ntilde;adido espacios al copiarla.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix2\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12 13l-5 5-5-5\"\/><path d=\"M12 5l5 5 5-5\"\/><path d=\"M12 18V7\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">Puedo recibir, pero no enviar<\/span>\n        <span class=\"ld-symptom-badge\">SMTP<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix2\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">Revisa el servidor <strong>SMTP<\/strong>. Debe tener activada la <strong>autenticaci&oacute;n<\/strong> y usar las mismas credenciales de la cuenta. Comprueba puerto y cifrado: 587 usa STARTTLS y 465 usa TLS impl&iacute;cito.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix3\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M7 9l5-5 5 5\"\/><path d=\"M12 4v12\"\/><path d=\"M4 18c2 2 5 3 8 3s6-1 8-3\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">Puedo enviar, pero no recibir<\/span>\n        <span class=\"ld-symptom-badge\">IMAP\/POP3<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix3\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">Confirma si elegiste <strong>IMAP o POP3<\/strong> y usa el puerto correspondiente. Revisa que el buz&oacute;n no est&eacute; lleno y que el nombre del servidor sea correcto.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix4\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M12 9v4\"\/><path d=\"M12 17h.01\"\/><path d=\"M10.29 3.86 1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0Z\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">Aparece un aviso sobre el certificado<\/span>\n        <span class=\"ld-symptom-badge\">TLS<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix4\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">No aceptes el aviso sin revisarlo. El nombre configurado como servidor debe <strong>coincidir<\/strong> con uno de los nombres incluidos en el certificado TLS.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix5\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M21 12a9 9 0 1 1-9-9\"\/><path d=\"M21 3v6h-6\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">El correo no se sincroniza<\/span>\n        <span class=\"ld-symptom-badge\">Sync<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix5\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">Comprueba que todos los dispositivos est&eacute;n configurados con <strong>IMAP<\/strong>. Si uno usa POP3, puede descargar los mensajes o gestionarlos de forma independiente.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n      <button type=\"button\" class=\"ld-symptom\" aria-expanded=\"false\" data-fix=\"fix6\">\n        <span class=\"ld-symptom-icon\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M22 2 11 13\"\/><path d=\"M22 2 15 22l-4-9-9-4Z\"\/><\/svg><\/span>\n        <span class=\"ld-symptom-label\">Los enviados no aparecen en otros equipos<\/span>\n        <span class=\"ld-symptom-badge\">Carpetas<\/span>\n      <\/button>\n      <div class=\"ld-fix\" id=\"fix6\">\n        <div class=\"ld-fix-inner\">\n          <div class=\"ld-fix-cause\">\n            <span class=\"ld-fix-tag\">Soluci&oacute;n<\/span>\n            <p class=\"ld-fix-text\">Revisa en el programa qu&eacute; carpeta usa para los enviados. Debe ser una <strong>carpeta del buz&oacute;n IMAP<\/strong> y no una carpeta local.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function () {\n    var root = document.getElementById('comp-ld-111');\n    if (!root) return;\n    var symptoms = root.querySelectorAll('.ld-symptom');\n    symptoms.forEach(function (sym) {\n      sym.addEventListener('click', function () {\n        var fixId = sym.getAttribute('data-fix');\n        var fix = document.getElementById(fixId);\n        if (!fix) return;\n        var isOpen = fix.classList.contains('is-open');\n        root.querySelectorAll('.ld-fix').forEach(function (f) { f.classList.remove('is-open'); });\n        symptoms.forEach(function (s) { s.setAttribute('aria-expanded', 'false'); });\n        if (!isOpen) {\n          fix.classList.add('is-open');\n          sym.setAttribute('aria-expanded', 'true');\n        }\n      });\n    });\n  });\n<\/script>\n<!-- FIN BLOQUE: problemas-frecuentes-al-configurar-el-correo -->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-webmail-imap-y-pop3-no-son-lo-mismo\">Webmail, IMAP y POP3 no son lo mismo<\/h2>\n\n\n\n<p><strong>Webmail<\/strong> es una aplicaci\u00f3n que permite consultar el correo desde un navegador. No es un protocolo de recepci\u00f3n como IMAP o POP3.<\/p>\n\n\n\n<p>Cuando accedes al webmail, trabajas directamente con el buz\u00f3n alojado en el servidor. No necesitas indicar puertos en el navegador porque la aplicaci\u00f3n ya est\u00e1 conectada al sistema de correo.<\/p>\n\n\n\n<p>IMAP y POP3 se utilizan cuando configuras la cuenta en un cliente como Outlook, Thunderbird o la aplicaci\u00f3n de correo del m\u00f3vil. Puedes usar webmail e IMAP con la misma cuenta sin que sean opciones excluyentes.<\/p>\n\n\n\n<p>El webmail tambi\u00e9n resulta \u00fatil para diagnosticar problemas. Si puedes entrar y enviar mensajes desde \u00e9l, pero no desde tu programa, el fallo suele estar en la configuraci\u00f3n del dispositivo.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\ud83d\udce7 POP vs IMAP: diferencias y cu\u00e1l elegir para configurar tu correo\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/fCCqxDwLRi0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-conclusion\">Conclusi\u00f3n<\/h2>\n\n\n\n<p>Para configurar una cuenta sin complicaciones, utiliza <strong>IMAP como servidor de correo entrante y SMTP como servidor saliente<\/strong>. Esta combinaci\u00f3n mantiene el buz\u00f3n sincronizado y permite enviar desde todos tus dispositivos.<\/p>\n\n\n\n<p>Reserva POP3 para situaciones en las que necesites descargar el correo en un equipo concreto y puedas gestionar sus copias de seguridad. Antes de introducir los datos, comprueba siempre los servidores, puertos y m\u00e9todos de cifrado indicados por tu proveedor.<\/p>\n\n\n\n<p>Si necesitas cuentas con dominio propio, acceso mediante webmail, cifrado y compatibilidad con estos protocolos, un servicio de <a href=\"https:\/\/www.loading.es\/hosting-correo\/index.html\">hosting correo<\/a> re\u00fane el buz\u00f3n y la gesti\u00f3n t\u00e9cnica necesaria.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.loading.es\/hosting\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"1000\" height=\"100\" src=\"https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb.png\" alt=\"oferta para contratar hosting web\" class=\"wp-image-8039\" srcset=\"https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb.png 1000w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-300x30.png 300w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-768x77.png 768w, https:\/\/www.loading.es\/blog\/wp-content\/uploads\/oferta_hostingweb-850x85.png 850w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-preguntas-frecuentes-sobre-los-protocolos-de-correo-faq\">Preguntas frecuentes sobre los protocolos de correo (FAQ)<\/h2>\n\n\n\n<!-- BLOQUE: preguntas-frecuentes -->\n<style>\n#comp-ld-113,\n#comp-ld-113 * {\n  box-sizing: border-box;\n}\n\n#comp-ld-113 {\n  color: inherit;\n  margin: 32px 0;\n}\n\n#comp-ld-113 details {\n  border-bottom: 1px solid rgba(55, 54, 61, 0.1);\n}\n\n#comp-ld-113 summary {\n  position: relative;\n  display: flex;\n  align-items: center;\n  gap: 12px;\n  padding: 18px 44px 18px 0;\n  font-weight: 700;\n  font-size: 1rem;\n  color: #37363d;\n  cursor: pointer;\n  list-style: none;\n  transition: color 250ms cubic-bezier(0.16, 1, 0.3, 1);\n  font-family: inherit;\n}\n\n#comp-ld-113 summary::-webkit-details-marker {\n  display: none;\n}\n\n#comp-ld-113 summary:hover {\n  color: #db7424;\n}\n\n#comp-ld-113 summary:focus-visible {\n  outline: 3px solid rgba(219, 116, 36, 0.22);\n  outline-offset: 4px;\n  border-radius: 8px;\n}\n\n#comp-ld-113 summary::after {\n  content: '+';\n  position: absolute;\n  right: 0;\n  top: 50%;\n  transform: translateY(-50%);\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  width: 30px;\n  height: 30px;\n  border-radius: 50%;\n  background: rgba(219, 116, 36, 0.1);\n  color: #db7424;\n  font-size: 1.1rem;\n  font-weight: 700;\n  line-height: 1;\n  flex-shrink: 0;\n  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1),\n    background 300ms cubic-bezier(0.16, 1, 0.3, 1);\n}\n\n#comp-ld-113 details[open] summary::after {\n  content: '\\2013';\n  background: rgba(0, 188, 223, 0.1);\n  color: #00bcdf;\n}\n\n#comp-ld-113 .ld-faq-answer {\n  margin: 0;\n  padding: 0 44px 18px 0;\n  font-size: 0.9rem;\n  color: rgba(55, 54, 61, 0.72);\n  line-height: 1.6;\n  font-family: inherit;\n}\n\n@media (prefers-reduced-motion: reduce) {\n  #comp-ld-113 * {\n    transition: none !important;\n    animation: none !important;\n  }\n}\n<\/style>\n\n<div id=\"comp-ld-113\">\n  <details>\n    <summary>&iquest;Es mejor IMAP o POP3?<\/summary>\n    <p class=\"ld-faq-answer\">IMAP es la opci&oacute;n habitual si usas varios dispositivos y quieres mantener el correo sincronizado. POP3 encaja mejor si descargas los mensajes en un &uacute;nico equipo y gestionas all&iacute; las copias.<\/p>\n  <\/details>\n  <details>\n    <summary>&iquest;SMTP sirve para recibir correo?<\/summary>\n    <p class=\"ld-faq-answer\">No. SMTP se utiliza para enviar mensajes. Para recibirlos y consultarlos desde un programa se usa IMAP o POP3.<\/p>\n  <\/details>\n  <details>\n    <summary>&iquest;Qu&eacute; son el servidor de correo entrante y el saliente?<\/summary>\n    <p class=\"ld-faq-answer\">El servidor entrante entrega o sincroniza los mensajes mediante IMAP o POP3. El servidor saliente utiliza SMTP para enviarlos.<\/p>\n  <\/details>\n  <details>\n    <summary>&iquest;Puedo usar IMAP y SMTP a la vez?<\/summary>\n    <p class=\"ld-faq-answer\">S&iacute;. Es la combinaci&oacute;n normal: IMAP recibe y sincroniza el correo, mientras que SMTP lo env&iacute;a.<\/p>\n  <\/details>\n  <details>\n    <summary>&iquest;POP3 elimina los mensajes del servidor?<\/summary>\n    <p class=\"ld-faq-answer\">Depende de la configuraci&oacute;n del programa. Puede eliminarlos despu&eacute;s de descargarlos o mantener una copia en el servidor durante un periodo determinado.<\/p>\n  <\/details>\n  <details>\n    <summary>&iquest;Cu&aacute;les son los puertos seguros del correo?<\/summary>\n    <p class=\"ld-faq-answer\">Los m&aacute;s habituales son 993 para IMAP con TLS, 995 para POP3 con TLS, 587 para SMTP con STARTTLS y 465 para SMTP con TLS impl&iacute;cito.<\/p>\n  <\/details>\n<\/div>\n<!-- FIN BLOQUE: preguntas-frecuentes -->\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-4 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-el-blog-de-loading wp-block-embed-el-blog-de-loading\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"O1cVsXE4kn\"><a href=\"https:\/\/www.loading.es\/blog\/configurar-correo-outlook\/\">C\u00f3mo configurar el correo en Outlook<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00abC\u00f3mo configurar el correo en Outlook\u00bb \u2014 El blog de Loading\" src=\"https:\/\/www.loading.es\/blog\/configurar-correo-outlook\/embed\/#?secret=oqaPZsxflq#?secret=O1cVsXE4kn\" data-secret=\"O1cVsXE4kn\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-el-blog-de-loading wp-block-embed-el-blog-de-loading\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"l4FzUJMoNW\"><a href=\"https:\/\/www.loading.es\/blog\/correo-profesional\/\">C\u00f3mo Crear un Correo Profesional<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00abC\u00f3mo Crear un Correo Profesional\u00bb \u2014 El blog de Loading\" src=\"https:\/\/www.loading.es\/blog\/correo-profesional\/embed\/#?secret=Iy2zpjCMxT#?secret=l4FzUJMoNW\" data-secret=\"l4FzUJMoNW\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-el-blog-de-loading wp-block-embed-el-blog-de-loading\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"2v9X4P2iQx\"><a href=\"https:\/\/www.loading.es\/blog\/que-son-listas-blancas-listas-negras-correo\/\">Qu\u00e9 es una lista blanca y negra de correo: Gu\u00eda completa<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00abQu\u00e9 es una lista blanca y negra de correo: Gu\u00eda completa\u00bb \u2014 El blog de Loading\" src=\"https:\/\/www.loading.es\/blog\/que-son-listas-blancas-listas-negras-correo\/embed\/#?secret=3L19L6ukEm#?secret=2v9X4P2iQx\" data-secret=\"2v9X4P2iQx\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u00bfEs mejor IMAP o POP3?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"IMAP es la opci\u00f3n habitual si usas varios dispositivos y quieres mantener el correo sincronizado. 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POP3 puede resultar \u00fatil en casos concretos, sobre todo si se quiere guardar el correo en un \u00fanico equipo.<\/p>\n","protected":false},"author":2,"featured_media":11716,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[442],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/posts\/11714"}],"collection":[{"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/comments?post=11714"}],"version-history":[{"count":5,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/posts\/11714\/revisions"}],"predecessor-version":[{"id":11722,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/posts\/11714\/revisions\/11722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/media\/11716"}],"wp:attachment":[{"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/media?parent=11714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/categories?post=11714"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.loading.es\/blog\/wp-json\/wp\/v2\/tags?post=11714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}