{"id":8603,"date":"2018-05-14T17:30:25","date_gmt":"2018-05-14T15:30:25","guid":{"rendered":"https:\/\/www.abd.es\/?p=12746"},"modified":"2026-07-14T14:22:49","modified_gmt":"2026-07-14T12:22:49","slug":"pildora-para-administradores-de-office-365-bloquear-o-permitir-remitentes-externos","status":"publish","type":"post","link":"https:\/\/www.abd.es\/en\/2018\/05\/pildora-para-administradores-de-office-365-bloquear-o-permitir-remitentes-externos\/","title":{"rendered":"Bloquear o permitir remitentes externos en Office 365 paso a paso"},"content":{"rendered":"<p><strong><a href=\"https:\/\/www.abd.es\/en\/microsoft-365-empresa\/\">Office 365<\/a><\/strong> cuenta con m\u00e1s de 150 millones de buzones de correo. Esto ofrece la posibilidad de que el aprendizaje de este servicio cloud en cuanto a gesti\u00f3n del flujo de correo sea muy elevado.<\/p>\n<p>Son millones de correos los que circulan por estos sistemas cada d\u00eda, lo que hace que la gesti\u00f3n del correo spam o no deseado sea cada vez m\u00e1s eficaz. Aun as\u00ed, pueden producirse casos en los que un correo leg\u00edtimo sea identificado como no deseado o, por el contrario, que mensajes de spam lleguen a los buzones de los usuarios.<\/p>\n<p>Como sabemos, Office 365 dispone de herramientas para gestionar todo este flujo de correo. En este art\u00edculo nos centraremos en c\u00f3mo <strong>bloquear o permitir remitentes en Office 365<\/strong> para adaptar el filtrado de correo electr\u00f3nico a las necesidades de cada organizaci\u00f3n.<\/p>\n<h2>Acceder a la administraci\u00f3n de Exchange Online<\/h2>\n<p>Para ello accedemos a la Administraci\u00f3n de Exchange desde el portal de administraci\u00f3n de Office 365.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web1-2.png\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-12749\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web1-2.png\" alt=\"P\u00edldora para Administradores de Office 365: bloquear o permitir remitentes externos\" width=\"299\" height=\"389\" \/><\/a><\/p>\n<h2>Abrir la configuraci\u00f3n del filtro de correo no deseado<\/h2>\n<p>Una vez cargado, seleccionamos <strong>Protecci\u00f3n<\/strong> y posteriormente <strong>Filtro de correo no deseado<\/strong>.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web2-2.png\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-12750\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web2-2.png\" alt=\"P\u00edldora para Administradores de Office 365: bloquear o permitir remitentes externos\" width=\"840\" height=\"453\" \/><\/a><\/p>\n<h2>Editar la directiva de protecci\u00f3n del dominio<\/h2>\n<p>Seleccionamos nuestro dominio y pulsamos <strong>Editar<\/strong> para modificar la directiva.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web3.png\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-12752\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web3.png\" alt=\"P\u00edldora para Administradores de Office 365: bloquear o permitir remitentes externos\" width=\"170\" height=\"42\" \/><\/a><\/p>\n<h2>C\u00f3mo bloquear remitentes en Office 365<\/h2>\n<p>Dentro de la directiva encontraremos la opci\u00f3n <strong>Listas de bloqueados<\/strong>.<\/p>\n<p>Desde aqu\u00ed podremos a\u00f1adir una o varias direcciones de correo electr\u00f3nico que queramos bloquear.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web4.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12753\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web4.png\" alt=\"P\u00edldora para Administradores de Office 365: bloquear o permitir remitentes externos\" width=\"883\" height=\"288\" \/><\/a><\/p>\n<h2>C\u00f3mo permitir remitentes en Office 365<\/h2>\n<p>Del mismo modo, la opci\u00f3n <strong>Listas de permitidos<\/strong> permite crear una lista blanca con aquellos remitentes que siempre queremos aceptar.<\/p>\n<p>Las direcciones se a\u00f1aden mediante el bot\u00f3n +, pudiendo introducir varias direcciones separadas por punto y coma.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web6.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-12755\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web6.png\" alt=\"P\u00edldora para Administradores de Office 365: bloquear o permitir remitentes externos\" width=\"511\" height=\"240\" \/><\/a><\/p>\n<h2>Permitir o bloquear dominios completos<\/h2>\n<p>Adem\u00e1s de direcciones individuales, Office 365 permite bloquear o permitir dominios completos.<\/p>\n<p>Esta opci\u00f3n resulta especialmente \u00fatil cuando queremos aceptar todos los correos procedentes de una empresa concreta o bloquear completamente un dominio desde el que recibimos spam.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web7.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-12756 size-full\" src=\"https:\/\/www.abd.es\/wp-content\/uploads\/2018\/05\/web7.png\" alt=\"bloqueo de dominios\" width=\"513\" height=\"215\" \/><\/a><\/p>\n<h2>Ventajas de gestionar los remitentes permitidos y bloqueados<\/h2>\n<p>Configurar correctamente estas listas ofrece diferentes beneficios:<\/p>\n<ul>\n<li>Reducir el correo no deseado.<\/li>\n<li>Evitar falsos positivos.<\/li>\n<li>Mejorar la seguridad del correo electr\u00f3nico.<\/li>\n<li>Controlar qu\u00e9 mensajes reciben los usuarios.<\/li>\n<li>Adaptar Exchange Online a las necesidades de la organizaci\u00f3n.<\/li>\n<\/ul>\n<h2>Conclusion<\/h2>\n<p>Como hemos visto, <strong>bloquear o permitir remitentes en Office 365<\/strong> es una configuraci\u00f3n sencilla que ayuda a mejorar la seguridad y el control del correo electr\u00f3nico corporativo.<\/p>\n<p>Gestionando correctamente las listas de remitentes y dominios permitidos o bloqueados podremos reducir incidencias relacionadas con el spam y asegurarnos de que los mensajes importantes llegan correctamente a los usuarios.<\/p>\n<p>En futuras publicaciones seguiremos compartiendo nuevas recomendaciones sobre Exchange Online, Microsoft 365 y seguridad del correo electr\u00f3nico.<\/p>\n<h2>ABD te ayuda a mejorar la seguridad de Microsoft 365<\/h2>\n<p>At <strong><a href=\"https:\/\/www.abd.es\/en\/\">ABD<\/a><\/strong> ayudamos a empresas a sacar el m\u00e1ximo partido a Microsoft 365 mediante servicios de consultor\u00eda, implantaci\u00f3n y soporte especializado. Si necesitas mejorar la seguridad del correo electr\u00f3nico, optimizar Exchange Online o configurar correctamente las pol\u00edticas de protecci\u00f3n frente al spam y al phishing, nuestro equipo puede ayudarte.<\/p>\n<p><a href=\"https:\/\/www.abd.es\/en\/contacto\/\"><strong>Contact us<\/strong><\/a> y descubre c\u00f3mo proteger mejor el correo de tu organizaci\u00f3n.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Office 365 cuenta con m\u00e1s de 150 millones de buzones de correo. Esto ofrece la posibilidad de que el aprendizaje de este servicio cloud en cuanto a gesti\u00f3n del flujo de correo sea muy elevado. Son millones de correos los que circulan por estos sistemas cada d\u00eda, lo que hace que la gesti\u00f3n del correo [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":8604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[88],"tags":[1055,333,146,1056,537],"class_list":["post-8603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualidad-abd","tag-flujo-de-correo-office-365","tag-microsoft-office-365","tag-office-365","tag-proteccion-office-365","tag-seguridad-en-office-365"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00f3mo bloquear o permitir remitentes en Office 365<\/title>\n<meta name=\"description\" content=\"Aprende c\u00f3mo bloquear o permitir remitentes en Office 365 y 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