{"id":666,"date":"2026-06-12T19:19:23","date_gmt":"2026-06-12T17:19:23","guid":{"rendered":"https:\/\/tecnologia.villanett.com\/?post_type=glossary&#038;p=666"},"modified":"2026-06-26T17:48:57","modified_gmt":"2026-06-26T15:48:57","slug":"smtp","status":"publish","type":"glossary","link":"https:\/\/tecnologia.villanett.com\/index.php\/glosario\/smtp\/","title":{"rendered":"SMTP: Qu\u00e9 es en inform\u00e1tica, c\u00f3mo funciona el protocolo y puertos"},"content":{"rendered":"<p data-start=\"0\" data-end=\"190\"><strong data-start=\"0\" data-end=\"8\">SMTP<\/strong> significa <strong data-start=\"19\" data-end=\"52\">Simple Mail Transfer Protocol<\/strong> (Protocolo Simple de Transferencia de Correo) y es el protocolo est&aacute;ndar utilizado para enviar correos electr&oacute;nicos a trav&eacute;s de Internet.<\/p>\n<p data-start=\"192\" data-end=\"331\">Cuando env&iacute;as un correo electr&oacute;nico, SMTP es el encargado de transferir el mensaje desde tu cliente de correo hasta el servidor de destino.<\/p>\n<hr data-start=\"333\" data-end=\"336\">\n<h3 data-section-id=\"1pq745u\" data-start=\"338\" data-end=\"358\">&iquest;Para qu&eacute; sirve?<\/h3>\n<ul data-start=\"359\" data-end=\"599\">\n<li data-section-id=\"1xd1pkm\" data-start=\"359\" data-end=\"389\">Enviar correos electr&oacute;nicos.<\/li>\n<li data-section-id=\"eqsgg5\" data-start=\"390\" data-end=\"439\">Transferir mensajes entre servidores de correo.<\/li>\n<li data-section-id=\"2jed4h\" data-start=\"440\" data-end=\"483\">Gestionar el env&iacute;o de emails autom&aacute;ticos.<\/li>\n<li data-section-id=\"1j0z4hb\" data-start=\"484\" data-end=\"544\">Permitir el funcionamiento de sistemas de email marketing.<\/li>\n<li data-section-id=\"zwq6d8\" data-start=\"545\" data-end=\"599\">Facilitar notificaciones y comunicaciones digitales.<\/li>\n<\/ul>\n<hr data-start=\"601\" data-end=\"604\">\n<h3 data-section-id=\"qhfs8z\" data-start=\"606\" data-end=\"625\">&iquest;C&oacute;mo funciona?<\/h3>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"contents\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute end-1.5 top-1 z-2 md:end-2 md:top-1\"><\/div>\n<div class=\"relative\">\n<div class=\"pe-11 pt-3\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch &#892;d &#892;r\" dir=\"ltr\">\n<div class=\"cm-scroller\">\n<pre class=\"cm-content q9tKkq_readonly m-0\"><code>Usuario env&iacute;a correo\r\n          &darr;\r\nCliente de correo usa SMTP\r\n          &darr;\r\nServidor SMTP procesa el mensaje\r\n          &darr;\r\nCorreo llega al servidor destinatario\r\n          &darr;\r\nDestinatario recibe el email<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"848\" data-end=\"851\">\n<h3 data-section-id=\"ghdlj7\" data-start=\"853\" data-end=\"873\">Ejemplo pr&aacute;ctico<\/h3>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"contents\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute end-1.5 top-1 z-2 md:end-2 md:top-1\"><\/div>\n<div class=\"relative\">\n<div class=\"pe-11 pt-3\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch &#892;d &#892;r\" dir=\"ltr\">\n<div class=\"cm-scroller\">\n<pre class=\"cm-content q9tKkq_readonly m-0\"><code>juan@empresa.com\r\n       &darr;\r\nSMTP\r\n       &darr;\r\nmaria@empresa.com<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"958\" data-end=\"1020\">SMTP se encarga de transportar el mensaje entre ambos correos.<\/p>\n<hr data-start=\"1022\" data-end=\"1025\">\n<h3 data-section-id=\"1on3n8i\" data-start=\"1027\" data-end=\"1052\">Funciones principales<\/h3>\n<ul data-start=\"1053\" data-end=\"1192\">\n<li data-section-id=\"ti06zz\" data-start=\"1053\" data-end=\"1085\">Env&iacute;o de correos electr&oacute;nicos.<\/li>\n<li data-section-id=\"ix6f7f\" data-start=\"1086\" data-end=\"1125\">Reenv&iacute;o de mensajes entre servidores.<\/li>\n<li data-section-id=\"1gb1gwu\" data-start=\"1126\" data-end=\"1161\">Gesti&oacute;n de correos automatizados.<\/li>\n<li data-section-id=\"70ssgl\" data-start=\"1162\" data-end=\"1192\">Autenticaci&oacute;n del remitente.<\/li>\n<\/ul>\n<hr data-start=\"1194\" data-end=\"1197\">\n<h3 data-section-id=\"pxrv4l\" data-start=\"1199\" data-end=\"1227\">Puertos SMTP m&aacute;s comunes<\/h3>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"contents\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute end-1.5 top-1 z-2 md:end-2 md:top-1\"><\/div>\n<div class=\"relative\">\n<div class=\"pe-11 pt-3\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch &#892;d &#892;r\" dir=\"ltr\">\n<div class=\"cm-scroller\">\n<pre class=\"cm-content q9tKkq_readonly m-0\"><code>25   &rarr; SMTP est&aacute;ndar\r\n465  &rarr; SMTP seguro (SSL)\r\n587  &rarr; SMTP con autenticaci&oacute;n (TLS)<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"1336\" data-end=\"1339\">\n<h3 data-section-id=\"g5yl83\" data-start=\"1341\" data-end=\"1355\">Beneficios<\/h3>\n<p data-start=\"1356\" data-end=\"1517\">&#9989; Est&aacute;ndar mundial para el env&iacute;o de correos.<br data-start=\"1400\" data-end=\"1403\">&#9989; Compatible con la mayor&iacute;a de servicios de email.<br data-start=\"1453\" data-end=\"1456\">&#9989; Permite automatizar env&iacute;os.<br data-start=\"1485\" data-end=\"1488\">&#9989; Soporta conexiones seguras.<\/p>\n<hr data-start=\"1519\" data-end=\"1522\">\n<h3 data-section-id=\"1fsdxcp\" data-start=\"1524\" data-end=\"1547\">Ejemplo empresarial<\/h3>\n<div class=\"relative w-full mt-4 mb-1\">\n<div class=\"\">\n<div class=\"contents\">\n<div class=\"relative\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"h-full min-h-0 min-w-0\">\n<div class=\"border border-token-border-light border-radius-3xl corner-superellipse\/1.1 rounded-3xl\">\n<div class=\"h-full w-full border-radius-3xl bg-token-bg-elevated-secondary corner-superellipse\/1.1 overflow-clip rounded-3xl lxnfua_clipPathFallback\">\n<div class=\"pointer-events-none absolute end-1.5 top-1 z-2 md:end-2 md:top-1\"><\/div>\n<div class=\"relative\">\n<div class=\"pe-11 pt-3\">\n<div class=\"relative z-0 flex max-w-full\">\n<div id=\"code-block-viewer\" class=\"q9tKkq_viewer cm-editor z-10 light:cm-light dark:cm-light flex h-full w-full flex-col items-stretch &#892;d &#892;r\" dir=\"ltr\">\n<div class=\"cm-scroller\">\n<pre class=\"cm-content q9tKkq_readonly m-0\"><code>Cliente realiza una compra\r\n          &darr;\r\nSistema genera confirmaci&oacute;n\r\n          &darr;\r\nSMTP env&iacute;a el correo autom&aacute;ticamente<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"\">\n<div class=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<hr data-start=\"1690\" data-end=\"1693\">\n<h3 data-section-id=\"u0axgo\" data-start=\"1695\" data-end=\"1733\">Diferencia entre SMTP, POP3 e IMAP<\/h3>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1735\" data-end=\"1913\">\n<thead data-start=\"1735\" data-end=\"1758\">\n<tr data-start=\"1735\" data-end=\"1758\">\n<th class=\"last:pe-10\" data-start=\"1735\" data-end=\"1747\" data-col-size=\"sm\">Protocolo<\/th>\n<th class=\"last:pe-10\" data-start=\"1747\" data-end=\"1758\" data-col-size=\"sm\">Funci&oacute;n<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1784\" data-end=\"1913\">\n<tr data-start=\"1784\" data-end=\"1821\">\n<td data-start=\"1784\" data-end=\"1791\" data-col-size=\"sm\">SMTP<\/td>\n<td data-start=\"1791\" data-end=\"1821\" data-col-size=\"sm\">Env&iacute;a correos electr&oacute;nicos<\/td>\n<\/tr>\n<tr data-start=\"1822\" data-end=\"1864\">\n<td data-start=\"1822\" data-end=\"1829\" data-col-size=\"sm\">POP3<\/td>\n<td data-start=\"1829\" data-end=\"1864\" data-col-size=\"sm\">Descarga correos al dispositivo<\/td>\n<\/tr>\n<tr data-start=\"1865\" data-end=\"1913\">\n<td data-start=\"1865\" data-end=\"1872\" data-col-size=\"sm\">IMAP<\/td>\n<td data-start=\"1872\" data-end=\"1913\" data-col-size=\"sm\">Sincroniza correos entre dispositivos<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"1915\" data-end=\"1918\">\n<h3 data-section-id=\"1tgfdj4\" data-start=\"1920\" data-end=\"1954\">Herramientas que utilizan SMTP<\/h3>\n<ul data-start=\"1955\" data-end=\"2111\">\n<li data-section-id=\"15a85x\" data-start=\"1955\" data-end=\"1994\"><span class=\"\" data-state=\"closed\">Gmail<\/span><\/li>\n<li data-section-id=\"lyf7sl\" data-start=\"1995\" data-end=\"2034\"><span class=\"\" data-state=\"closed\">Outlook<\/span><\/li>\n<li data-section-id=\"3cmuur\" data-start=\"2035\" data-end=\"2049\">Sistemas CRM<\/li>\n<li data-section-id=\"8w97l9\" data-start=\"2050\" data-end=\"2082\">Plataformas de email marketing<\/li>\n<li data-section-id=\"1fuee66\" data-start=\"2083\" data-end=\"2111\">Aplicaciones empresariales<\/li>\n<\/ul>\n<hr data-start=\"2113\" data-end=\"2116\">\n<h3 data-section-id=\"fnl5kv\" data-start=\"2118\" data-end=\"2133\">Importancia<\/h3>\n<p data-start=\"2134\" data-end=\"2307\">SMTP es fundamental para el funcionamiento del correo electr&oacute;nico, ya que permite que los mensajes se env&iacute;en de forma confiable entre usuarios y servidores de todo el mundo.<\/p>\n<hr data-start=\"2309\" data-end=\"2312\">\n<h3 data-section-id=\"js1ou2\" data-start=\"2314\" data-end=\"2328\">En resumen<\/h3>\n<p data-start=\"2329\" data-end=\"2529\" data-is-last-node=\"\" data-is-only-node=\"\"><strong data-start=\"2329\" data-end=\"2529\" data-is-last-node=\"\">SMTP (Simple Mail Transfer Protocol) es el protocolo utilizado para enviar correos electr&oacute;nicos a trav&eacute;s de Internet, permitiendo la comunicaci&oacute;n entre clientes y servidores de correo electr&oacute;nico.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SMTP significa Simple Mail Transfer Protocol (Protocolo Simple de Transferencia de Correo) y es el protocolo est&aacute;ndar utilizado para enviar correos electr&oacute;nicos a trav&eacute;s de Internet. Cuando env&iacute;as un correo electr&oacute;nico, SMTP es el encargado de transferir el mensaje desde tu cliente de correo hasta el servidor de destino. &iquest;Para qu&eacute; sirve? Enviar correos electr&oacute;nicos. &hellip; <a href=\"https:\/\/tecnologia.villanett.com\/index.php\/glosario\/smtp\/\" class=\"more-link\">Seguir leyendo <span class=\"screen-reader-text\"><a class=\"glossaryLink\" href=\"https:\/\/tecnologia.villanett.com\/index.php\/glosario\/smtp\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">SMTP: Qu&eacute; es en inform&aacute;tica, c&oacute;mo funciona el protocolo y puertos<\/a><\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-666","glossary","type-glossary","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/glossary\/666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":3,"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/glossary\/666\/revisions"}],"predecessor-version":[{"id":1088,"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/glossary\/666\/revisions\/1088"}],"wp:attachment":[{"href":"https:\/\/tecnologia.villanett.com\/index.php\/wp-json\/wp\/v2\/media?parent=666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}