{"id":39686,"date":"2019-03-22T10:07:43","date_gmt":"2019-03-22T10:07:43","guid":{"rendered":"https:\/\/wp.lvh.me\/blog\/2019\/03\/22\/mailrelay-v3-configurando-el-spf-dominio-personalizado-dkim-y-dmarc\/"},"modified":"2026-10-21T07:47:05","modified_gmt":"2026-10-21T07:47:05","slug":"mailrelay-v3-configurando-el-spf-dominio-personalizado-y-dkim","status":"publish","type":"post","link":"https:\/\/mailrelay.com\/es\/blog\/2019\/03\/22\/mailrelay-v3-configurando-el-spf-dominio-personalizado-y-dkim\/","title":{"rendered":"C\u00f3mo configurar SPF, DKIM, DMARC y dominio personalizado en Mailrelay paso a paso"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Configurar el SPF, el DKIM, el DMARC y el dominio personalizado es lo que permite a Gmail, Outlook o Yahoo comprobar que tus emails los env\u00edas t\u00fa. Sin estos registros, tus campa\u00f1as tienen m\u00e1s papeletas para acabar en la carpeta de spam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En esta gu\u00eda ver\u00e1s qu\u00e9 registro a\u00f1adir en las DNS de tu dominio para cada uno, d\u00f3nde activarlo en Mailrelay y c\u00f3mo comprobar que funciona. Son los mismos pasos que explica nuestro <a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/help.mailrelay.com\/es\/support\/solutions\/articles\/103000069378\">art\u00edculo de ayuda<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\" style=\"border-radius:8px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Configura tu autenticaci\u00f3n en pocos minutos<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sigue esta gu\u00eda paso a paso para dejar tu SPF, dominio y DKIM listos en Mailrelay.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-mailrelay-primary-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/mailrelay.com\/es\/alta\/?utm_medium=cta&#038;utm_campaign=mailrelay-v3-configurando-el-spf-dominio-personalizado-y-dkim\">Visitar Mailrelay<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:32px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u00e9 necesitas antes de empezar<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Un dominio propio (por ejemplo, tuempresa.com). Con una direcci\u00f3n de Gmail u Outlook no se puede autenticar.<\/li>\n\n\n\n<li>Acceso al panel de DNS de tu dominio o a tu proveedor de hosting para que lo haga por ti.<\/li>\n\n\n\n<li>Unos 15 minutos. Los cambios de DNS pueden tardar unas horas en aplicarse.<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Este es el resumen de los cuatro registros:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Registro<\/th><th>Tipo<\/th><th>Nombre (host)<\/th><th>Valor<\/th><\/tr><\/thead><tbody><tr><td>SPF<\/td><td>TXT<\/td><td>tudominio.com<\/td><td>v=spf1 a mx include:spf.ipzmarketing.com -all<\/td><\/tr><tr><td>Dominio personalizado<\/td><td>CNAME<\/td><td>newsletter.tudominio.com (el que elijas)<\/td><td>tudominio.ipzmarketing.com<\/td><\/tr><tr><td>DKIM<\/td><td>CNAME<\/td><td>ipz._domainkey.tudominio.com<\/td><td>dkim.ipzmarketing.com.<\/td><\/tr><tr><td>DMARC<\/td><td>TXT<\/td><td>_dmarc.tudominio.com<\/td><td>v=DMARC1; p=none;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Paso 1: configurar el SPF<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El <a href=\"https:\/\/mailrelay.com\/es\/glosario\/spf-sender-policy-framework\/\">SPF<\/a> es un registro DNS que indica qu\u00e9 servidores pueden enviar emails en nombre de tu dominio. As\u00ed los filtros antispam saben que Mailrelay env\u00eda con tu permiso y no te confunden con alguien que suplanta tu direcci\u00f3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00e9 registro a\u00f1adir<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Entra en el panel de DNS de tu dominio o p\u00eddeselo a tu proveedor de hosting:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>Si ya tienes un registro SPF<\/strong> (un TXT que empieza por v=spf1), a\u00f1ade este include justo despu\u00e9s de v=spf1: <code>include:spf.ipzmarketing.com<\/code><\/li>\n\n\n\n<li><strong>Si no tienes ninguno<\/strong>, crea este registro TXT completo: <code>v=spf1 a mx include:spf.ipzmarketing.com -all<\/code><\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un dominio solo puede tener un registro SPF. Si creas un segundo, los dos dejan de funcionar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00e9 significa el \u00ab-all\u00bb del final<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Indica qu\u00e9 deben hacer los servidores con los emails que llegan desde una IP no autorizada:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>-all:<\/strong> solo las IP autorizadas pueden enviar con tu dominio. Es la opci\u00f3n recomendada.<\/li>\n\n\n\n<li><strong>~all:<\/strong> los emails de otros servidores se aceptan, pero se marcan como sospechosos.<\/li>\n\n\n\n<li><strong>?all o +all:<\/strong> el SPF deja de protegerte.<\/li>\n\n<\/ul>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/07\/dominio-personalizado.png\" alt=\"\u00bfQu\u00e9 es el dominio personalizado?\" class=\"wp-image-12896\" style=\"width:630px;height:auto\" title=\"\u00bfQu\u00e9 es el dominio personalizado?\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Paso 2: configurar el dominio personalizado<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El dominio personalizado sustituye el dominio gen\u00e9rico de Mailrelay en los enlaces de seguimiento y en las im\u00e1genes de tus emails por uno tuyo. Quedar\u00e1 algo como newsletter.tudominio.com, y tu reputaci\u00f3n depender\u00e1 solo de tus env\u00edos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00e9 registro a\u00f1adir<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li>Elige un subdominio, por ejemplo newsletter.tudominio.com o news.tudominio.com.<\/li>\n\n\n\n<li>En el panel de DNS, crea un registro CNAME con ese subdominio.<\/li>\n\n\n\n<li>Haz que apunte a: <code>tudominio.ipzmarketing.com<\/code><\/li>\n\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f3mo a\u00f1adirlo en Mailrelay<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li>En tu cuenta, ve a <strong>Configuraci\u00f3n > Dominios personalizados<\/strong> y haz clic en <strong>A\u00f1adir<\/strong>.<\/li>\n\n<\/ol>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"725\" height=\"379\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/dominio-personalizado.jpg\" alt=\"Opci\u00f3n para a\u00f1adir un dominio personalizado en la cuenta de Mailrelay\" class=\"wp-image-36263\" style=\"width:499px;height:auto\" title=\"Dominio personalizado\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/dominio-personalizado.jpg 725w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/dominio-personalizado-300x157.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/dominio-personalizado-110x58.jpg 110w\" sizes=\"auto, (max-width: 725px) 100vw, 725px\" \/><\/figure>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n\n<li>Escribe el subdominio que has creado, sin http:\/\/ ni https:\/\/.<\/li>\n\n\n\n<li>Una vez creado, m\u00e1rcalo como <strong>activo<\/strong> para que Mailrelay empiece a usarlo.<\/li>\n\n<\/ol>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2017\/01\/spf.jpg\" alt=\"\u00bfQu\u00e9 es el registro DKIM?\" class=\"wp-image-34012\" style=\"width:630px;height:auto\" title=\"\u00bfQu\u00e9 es el registro DKIM?\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2017\/01\/spf.jpg 630w, https:\/\/mailrelay.com\/wp-content\/uploads\/2017\/01\/spf-300x162.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2017\/01\/spf-110x59.jpg 110w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\" style=\"border-radius:8px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u00bfA\u00fan no tienes cuenta en Mailrelay?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Crea tu cuenta gratuita y configura tu dominio de env\u00edo con SPF y DKIM desde el primer d\u00eda.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-mailrelay-primary-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/mailrelay.com\/es\/alta\/?utm_medium=cta&#038;utm_campaign=mailrelay-v3-configurando-el-spf-dominio-personalizado-y-dkim\">Probar Mailrelay gratis<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Paso 3: configurar el DKIM<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El <a href=\"https:\/\/mailrelay.com\/es\/glosario\/dkim-domainkeys-identified-mail\/\">DKIM<\/a> a\u00f1ade una firma cifrada a cada email. El servidor que lo recibe la comprueba y as\u00ed sabe que el mensaje sale de tu dominio y que nadie lo ha cambiado por el camino.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00e9 registro a\u00f1adir<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En el panel de DNS, crea un registro CNAME:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>Nombre:<\/strong> <code>ipz._domainkey.tudominio.com<\/code> (cambia tudominio.com por tu dominio).<\/li>\n\n\n\n<li><strong>Apunta a:<\/strong> <code>dkim.ipzmarketing.com.<\/code> (con el punto final).<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Si tu proveedor de DNS da error con el punto final, prueba sin \u00e9l.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Paso 4: configurar el DMARC<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El <a href=\"https:\/\/mailrelay.com\/es\/glosario\/dmarc\/\">DMARC<\/a> indica a los servidores qu\u00e9 hacer con los emails de tu dominio que no superan las comprobaciones de SPF o DKIM.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u00e9 registro a\u00f1adir<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Crea un registro TXT en tus DNS:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>Nombre:<\/strong> <code>_dmarc.tudominio.com<\/code><\/li>\n\n\n\n<li><strong>Valor:<\/strong> <code>v=DMARC1; p=none;<\/code><\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Con p=none los servidores no bloquean nada: solo vigilan. Es la forma segura de empezar. M\u00e1s adelante, cuando todo funcione, puedes endurecer la pol\u00edtica.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3mo comprobar que todo est\u00e1 bien<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">En tu cuenta de Mailrelay<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ve a <strong>Configuraci\u00f3n > Autenticaci\u00f3n de email<\/strong> y escribe tu dominio. El panel te dice si el SPF, el dominio personalizado, el DKIM y el DMARC est\u00e1n bien configurados.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">En un email de prueba<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li>Env\u00eda un bolet\u00edn de prueba a una direcci\u00f3n de Gmail.<\/li>\n\n\n\n<li>\u00c1brelo, pulsa en los tres puntos de la parte superior derecha y elige <strong>Mostrar original<\/strong>.<\/li>\n\n<\/ol>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1242\" height=\"598\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1.png\" alt=\"Comprobar SPF y DKIM\" class=\"wp-image-36245\" style=\"width:629px;height:auto\" title=\"Comprobar SPF y DKIM\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1.png 1242w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1-300x144.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1-1024x493.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1-768x370.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-1-110x53.png 110w\" sizes=\"auto, (max-width: 1242px) 100vw, 1242px\" \/><\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n\n<li>Ver\u00e1s las cabeceras del mensaje. Si junto a SPF y DKIM aparece <strong>PASS<\/strong>, est\u00e1n bien. Si aparece <strong>FAIL<\/strong>, revisa ese registro.<\/li>\n\n<\/ol>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1121\" height=\"840\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2.png\" alt=\"comprobaci\u00f3n SPF y DKIM\" class=\"wp-image-36247\" style=\"width:630px;height:auto\" title=\"comprobaci\u00f3n SPF y DKIM\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2.png 1121w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2-300x225.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2-1024x767.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2-768x575.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/03\/IMAGEN-GMAIL-2-110x82.png 110w\" sizes=\"auto, (max-width: 1121px) 100vw, 1121px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Para el dominio personalizado tambi\u00e9n puedes usar la b\u00fasqueda CNAME de <a target=\"_blank\" rel=\"noopener\" href=\"https:\/\/mxtoolbox.com\/CNAMELookup.aspx\">MxToolbox<\/a>: escribe tu subdominio y pulsa \u00abCNAME Lookup\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si algo no cuadra, escr\u00edbenos por cualquiera de nuestros canales de soporte y te ayudamos a revisarlo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Preguntas frecuentes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u00bfCu\u00e1nto tardan en aplicarse los cambios de DNS?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Suele ser cuesti\u00f3n de minutos o pocas horas, pero algunos proveedores tardan hasta 24-48 horas. Si el panel a\u00fan no los detecta, espera un poco y vuelve a comprobarlo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00bfPuedo tener dos registros SPF en el mismo dominio?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. Si ya usas el SPF para otros servicios, como tu correo corporativo, a\u00f1ade include:spf.ipzmarketing.com al registro que ya tienes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00bfEs obligatorio configurar el DMARC?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gmail y Yahoo lo exigen desde 2024 a quienes env\u00edan m\u00e1s de 5.000 emails al d\u00eda a sus usuarios. Aunque env\u00edes menos, conviene tenerlo: con p=none no bloquea nada y mejora la confianza en tu dominio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00bfQu\u00e9 pasa si no configuro el dominio personalizado?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tus emails se env\u00edan igual, pero los enlaces y las im\u00e1genes usan un dominio gen\u00e9rico. Con tu propio subdominio, la reputaci\u00f3n de tus env\u00edos depende solo de ti.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00bfNecesito configurar todo esto con la cuenta gratuita?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00ed, y es lo recomendable. La autenticaci\u00f3n no depende del plan: depende de tu dominio. Hacerlo desde el primer env\u00edo ayuda a llegar a la bandeja de entrada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Configurar bien estos registros mejora tu tasa de entrega en la bandeja de entrada. Y si adem\u00e1s env\u00edas a trav\u00e9s de un servidor SMTP relay o smarthost, es igual de importante. Si quieres saber m\u00e1s, lee nuestras entradas sobre <a href=\"https:\/\/mailrelay.com\/es\/glosario\/dominio-de-envio\/\">dominio de env\u00edo<\/a> y <a href=\"https:\/\/mailrelay.com\/es\/glosario\/entregabilidad-en-email-marketing\/\">entregabilidad<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\" style=\"border-radius:8px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Env\u00eda con la m\u00e1xima entregabilidad<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con la configuraci\u00f3n correcta, tus campa\u00f1as llegar\u00e1n siempre a la bandeja de entrada. Empieza con Mailrelay.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-mailrelay-primary-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/mailrelay.com\/es\/alta\/?utm_medium=cta&#038;utm_campaign=mailrelay-v3-configurando-el-spf-dominio-personalizado-y-dkim\">Empieza con Mailrelay<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:32px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-white-color has-text-color has-background has-link-color wp-elements-1\" style=\"border-radius:8px;background-color:#0072c6;margin-top:32px;margin-bottom:32px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading has-white-color has-text-color\">Propuestas de lectura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/es\/blog\/2025\/11\/13\/como-lograr-la-mejor-entregabilidad-en-email-marketing-en-espana-con-mailrelay\/\">C\u00f3mo lograr la mejor entregabilidad en email marketing<\/a><\/strong><br>Qu\u00e9 mide la entregabilidad y qu\u00e9 ajustes hacen que tus emails lleguen a la bandeja de entrada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/es\/blog\/2025\/04\/15\/que-piden-outlook-gmail-y-yahoo-para-no-poner-tus-emails-en-spam\/\">Qu\u00e9 piden Outlook, Gmail y Yahoo para no ir a spam<\/a><\/strong><br>Los requisitos actuales de los grandes proveedores para que tus emails lleguen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/es\/blog\/2019\/07\/17\/headers-o-cabeceras-como-mostrarlos-en-tus-emails-y-evitar-problemas-de-envio\/\">Headers en emails: c\u00f3mo mostrarlos<\/a><\/strong><br>Qu\u00e9 son las cabeceras de un email, c\u00f3mo verlas y qu\u00e9 problemas de env\u00edo revelan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/es\/blog\/2014\/10\/02\/motivos-de-rebote-y-posibles-soluciones\/\">Motivos de rebote en mailings y soluciones<\/a><\/strong><br>Por qu\u00e9 rebotan los emails y qu\u00e9 hacer en cada caso.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\" style=\"border-radius:8px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-5dc627e1 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:112px\">\n<figure class=\"wp-block-image size-full is-resized is-style-rounded\" style=\"margin-top:0;margin-bottom:0\"><a href=\"https:\/\/mailrelay.com\/es\/blog\/author\/jose\/\"><img loading=\"lazy\" decoding=\"async\" width=\"176\" height=\"176\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay.jpg\" alt=\"Jose Argudo, CMO de Mailrelay\" class=\"wp-image-97284\" style=\"width:96px;height:96px\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay.jpg 176w, https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay-150x150.jpg 150w, https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay-110x110.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay-60x60.jpg 60w, https:\/\/mailrelay.com\/wp-content\/uploads\/2026\/10\/jose-argudo-cmo-mailrelay-120x120.jpg 120w\" sizes=\"auto, (max-width: 176px) 100vw, 176px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:4px\"><strong>Jose Argudo<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:4px\">CMO de Mailrelay. Escribe sobre email marketing, copywriting y conversi\u00f3n para pymes y emprendedores.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"margin-top:0;margin-bottom:0\"><a href=\"https:\/\/mailrelay.com\/es\/blog\/author\/jose\/\">M\u00e1s art\u00edculos de Jose<\/a> \u00b7 <a href=\"https:\/\/www.linkedin.com\/in\/joseargudo\" target=\"_blank\" rel=\"noreferrer noopener\">LinkedIn<\/a><\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Los registros DNS que necesitas para autenticar tus env\u00edos, d\u00f3nde se a\u00f1aden y c\u00f3mo comprobar que funcionan.<\/p>\n","protected":false},"author":124,"featured_media":36243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[231,834],"tags":[],"class_list":["post-39686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-marketing","category-entregabilidad-y-aspectos-tecnicos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Configurar SPF, DKIM y DMARC en Mailrelay: gu\u00eda paso a paso<\/title>\n<meta name=\"description\" content=\"C\u00f3mo configurar SPF, DKIM, DMARC y el dominio personalizado en Mailrelay: qu\u00e9 registros a\u00f1adir en tus DNS y c\u00f3mo comprobar que est\u00e1n bien.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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