{"id":3800,"date":"2026-07-22T16:16:08","date_gmt":"2026-07-22T16:16:08","guid":{"rendered":"https:\/\/disoh.com\/support\/what-is-dmarc-and-why-your-domain-needs-it\/"},"modified":"2026-07-22T16:16:08","modified_gmt":"2026-07-22T16:16:08","password":"","slug":"que-es-dmarc-y-por-que-tu-dominio-lo-necesita","status":"publish","type":"docs","link":"https:\/\/disoh.com\/es\/support\/what-is-dmarc-and-why-your-domain-needs-it\/","title":{"rendered":"\u00bfQu\u00e9 es DMARC y por qu\u00e9 tu dominio lo necesita?"},"content":{"rendered":"<p>DMARC (Domain-based Message Authentication, Reporting and Conformance) es una pol\u00edtica de correo electr\u00f3nico que se basa en SPF y DKIM para indicar a los servidores receptores qu\u00e9 hacer con los mensajes que no superan la autenticaci\u00f3n. En t\u00e9rminos sencillos, SPF y DKIM demuestran que tu correo es aut\u00e9ntico, y DMARC decide qu\u00e9 ocurre con los correos que se hacen pasar por ti. Configurarlo protege tu marca y aumenta las posibilidades de que tus correos electr\u00f3nicos aut\u00e9nticos lleguen a la bandeja de entrada.<\/p>\n<h2>Por qu\u00e9 es importante el DMARC<\/h2>\n<p>Sin DMARC, aunque dispongas de SPF y DKIM, los servidores receptores no tienen instrucciones sobre c\u00f3mo gestionar los mensajes falsificados, por lo que cada uno decide por su cuenta. DMARC subsana esa carencia. Adem\u00e1s, te env\u00eda informes en los que se indica qui\u00e9n env\u00eda correos electr\u00f3nicos utilizando tu dominio, lo cual resulta de gran valor para detectar abusos. Las principales ventajas son:<\/p>\n<ul>\n<li><strong>Protecci\u00f3n contra la suplantaci\u00f3n de identidad:<\/strong> evita que los delincuentes se hagan pasar por tu dominio de forma convincente.<\/li>\n<li><strong>Capacidad de entrega:<\/strong> Una pol\u00edtica clara y coherente fomenta la confianza de los proveedores de correo electr\u00f3nico.<\/li>\n<li><strong>Visibilidad:<\/strong> Los informes revelan todas las fuentes que env\u00edan mensajes desde tu dominio.<\/li>\n<\/ul>\n<h2>C\u00f3mo funciona DMARC<\/h2>\n<p>DMARC se publica como un registro TXT en un nombre de host espec\u00edfico, <em>_dmarc.tudominio.com<\/em>. En \u00e9l se establece una pol\u00edtica y se indica d\u00f3nde enviar los informes. La pol\u00edtica puede tener uno de estos tres niveles, y lo mejor es ir avanzando por ellos poco a poco a medida que se va adquiriendo confianza.<\/p>\n<ul>\n<li><strong>p=ninguno:<\/strong> Solo supervisar, no tomar ninguna medida. Empieza por aqu\u00ed para recopilar informes.<\/li>\n<li><strong>p = cuarentena:<\/strong> Enviar los correos que no se puedan entregar a la carpeta de spam.<\/li>\n<li><strong>p = rechazar:<\/strong> Bloquear directamente los correos que no se puedan entregar. La protecci\u00f3n m\u00e1s eficaz.<\/li>\n<\/ul>\n<h2>C\u00f3mo configurar DMARC<\/h2>\n<ul>\n<li>En primer lugar, aseg\u00farate de que SPF y DKIM ya est\u00e9n configurados y superen las comprobaciones.<\/li>\n<li>Inicia sesi\u00f3n en tu gestor de DNS o en tu panel de control.<\/li>\n<li>Crear un <strong>TXT<\/strong> registrarse con el anfitri\u00f3n <em>_dmarc<\/em>.<\/li>\n<li>Introduce un valor inicial, como por ejemplo <em>v=DMARC1; p=none; rua=mailto:you@yourdomain.com<\/em>.<\/li>\n<li>Gu\u00e1rdalo y deja que se asiente.<\/li>\n<\/ul>\n<p>Empieza por <em>p=ninguno<\/em>, revisa los informes durante un par de semanas para asegurarte de que todos tus remitentes leg\u00edtimos superan el filtro y, a continuaci\u00f3n, endurece la pol\u00edtica para ponerlos en cuarentena y, finalmente, rechazarlos.<\/p>\n<h2>La lectura de los informes<\/h2>\n<p>En <em>rua<\/em> La direcci\u00f3n recibe informes diarios agregados en formato XML. Estos pueden resultar dif\u00edciles de leer a simple vista, por lo que muchas personas utilizan un visor gratuito de informes DMARC para interpretarlos. El objetivo es confirmar que todas las fuentes que env\u00edan mensajes en tu nombre est\u00e9n autenticadas antes de aplicar una pol\u00edtica m\u00e1s estricta.<\/p>\n<h2>Soluci\u00f3n de problemas<\/h2>\n<ul>\n<li><strong>Correo leg\u00edtimo en cuarentena:<\/strong> Vuelve a establecer p=none y comprueba que el SPF y el DKIM sean v\u00e1lidos para ese remitente.<\/li>\n<li><strong>No se han recibido informes:<\/strong> Comprueba que la direcci\u00f3n de la RUA sea v\u00e1lida y que los datos sean correctos.<\/li>\n<li><strong>Registro no reconocido:<\/strong> Confirma que el host sea exactamente _dmarc.<\/li>\n<\/ul>\n<h2>\u00bfNecesita ayuda?<\/h2>\n<p>DMARC se adapta mejor a una implementaci\u00f3n cuidadosa y por etapas. Si necesitas ayuda para interpretar los informes o elegir una pol\u00edtica, nuestro equipo de asistencia est\u00e1 a tu disposici\u00f3n a trav\u00e9s del chat en directo.<\/p>","protected":false},"excerpt":{"rendered":"<p>DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email policy that builds on SPF and DKIM to tell receiving servers what to do with messages that fail authentication. In simple terms, SPF and DKIM prove your mail is genuine, and DMARC decides what happens to mail that pretends to be you. Setting it up [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[13],"doc_tag":[],"class_list":["post-3800","docs","type-docs","status-publish","hentry","doc_category-domains"],"year_month":"2026-07","word_count":432,"total_views":"42","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Jorn","author_nicename":"jorn","author_url":"https:\/\/disoh.com\/es\/author\/jorn\/"},"doc_category_info":[{"term_name":"Domains","term_url":"https:\/\/disoh.com\/es\/docs-category\/domains\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is DMARC and Why Your Domain Needs It &#8211; Disoh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/disoh.com\/es\/soporte\/que-es-dmarc-y-por-que-tu-dominio-lo-necesita\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is DMARC and Why Your Domain Needs It &#8211; Disoh\" \/>\n<meta property=\"og:description\" content=\"DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email policy that builds on SPF and DKIM to tell receiving servers what to do with messages that fail authentication. 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