{"id":30785,"date":"2019-09-06T13:43:28","date_gmt":"2019-09-06T11:43:28","guid":{"rendered":"https:\/\/www.hostinet.com\/formacion\/?p=30785"},"modified":"2021-12-28T14:43:59","modified_gmt":"2021-12-28T12:43:59","slug":"error-550-5-7-1-authentication-required","status":"publish","type":"post","link":"https:\/\/www.hostinet.com\/formacion\/correo-electronico\/error-550-5-7-1-authentication-required\/","title":{"rendered":"Error: \u201c550 5.7.1 Authentication Required\u201d"},"content":{"rendered":" <!-- x0 --><div style=\"min-height: 30px; margin-top: 0px; padding-bottom: 7px; z-index: 1;position: relative; float: none;\" class=\"social-container\"><\/div><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30791\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered.jpg\" alt=\"Error: \u201c550 5.7.1 Authentication Required\u201d\" width=\"450\" height=\"280\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered.jpg 450w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-350x218.jpg 350w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Puede que alg\u00fan d\u00eda tengamos una recopilaci\u00f3n de todos los<strong> Errores 550<\/strong> que existen para el <strong>correo electr\u00f3nico<\/strong>. Esperemos que esto pueda servir como una especie de base de datos de conocimientos para todos nuestros clientes. \u00a1Solo accesible desde nuestro blog de formaci\u00f3n!<\/p>\n<p>De hecho, este es el<strong> cuarto Error 550<\/strong> que vamos a poner (los otros 3 se pueden consultar al final del art\u00edculo).<\/p>\n<p>Clientes de correo como <em>Outlook<\/em>, <em>Thunderbird<\/em> o similares vienen muy bien para mejorar la comunicaci\u00f3n, sin embargo, a veces esos clientes pueden dar errores, como por ejemplo en el que nos ocupa en el caso de hoy:<strong> Error \u201c550 5.7.1: Authentication Required\u201d<\/strong>.<\/p>\n<p>El caso es que podemos volvernos un poco locos si no damos con la causa concreta que provoca dicho<strong> error de autenticaci\u00f3n<\/strong>. Es por ello por lo que hemos decido abordar este tema para ver c\u00f3mo podemos resolverlo de la forma m\u00e1s sencilla posible.<\/p>\n<h2><strong>\u00bfQu\u00e9 es el Error: \u201c550 5.7.1 Authentication Required\u201d?<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30790\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Quees.jpg\" alt=\"Error: \u201c550 5.7.1 Authentication Required\u201d \u00bfQue \u00e9s?\" width=\"450\" height=\"280\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Quees.jpg 450w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Quees-350x218.jpg 350w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>En primer lugar, vamos a ver en profundidad que significar el <strong>Error: \u201c550 5.7.1 Authentication Required\u201d<\/strong>.<\/p>\n<p><strong>El error 550 es un c\u00f3digo de error que indica la autenticaci\u00f3n incorrecta del usuario en el servidor.<\/strong><\/p>\n<p>Los errores de correo electr\u00f3nico que comienzan con \u00ab5\u00bb requieren de una acci\u00f3n por parte del usuario en vez de volver a intentar enviar el mensaje.<\/p>\n<p>Los d\u00edgitos 5.7.1 indican que el mensaje fue rechazado.<\/p>\n<p>En resumen, <strong>el Error: \u201c550 5.7.1 Authentication Required\u201d es un error que se produce de forma habitual por la inserci\u00f3n de credenciales incorrectos por parte del usuario debido a una autenticaci\u00f3n incorrecta<\/strong>.<\/p>\n<h2><strong>\u00bfPor qu\u00e9 pasa el Error: \u201c550 5.7.1 Authentication Required\u201d?<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30789\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Porquepasa.jpg\" alt=\"Error: \u201c550 5.7.1 Authentication Required\u201d \u00bfPor qu\u00e9 pasa??\" width=\"450\" height=\"280\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Porquepasa.jpg 450w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Porquepasa-350x218.jpg 350w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Ahora que conocemos que es el <strong>Error: \u201c550 5.7.1 Authentication Required\u201d<\/strong>. Es hora de saber por qu\u00e9 sucede.<\/p>\n<p>La seguridad en el env\u00edo de correos electr\u00f3nicos es muy importante al mandar informaci\u00f3n confidencial. La ausencia de autenticaci\u00f3n de la cuenta podr\u00eda provocar ataques de spammers que usar\u00edan el servidor para realizar env\u00edos de correos electr\u00f3nicos innecesarios. Dicho env\u00edo de spam tambi\u00e9n podr\u00eda hacer que la IP del servidor acabara en una lista negra provocando todos los problemas que eso conllevar\u00eda.<\/p>\n<p>Por lo tanto, los administradores de servidores siempre permiten correos electr\u00f3nicos solo de remitentes autenticados. Y, cuando falla la autenticaci\u00f3n, el servidor informa de un error.<\/p>\n<p>Hay dos posibilidades para que se produzca este error de autenticaci\u00f3n.<\/p>\n<ol>\n<li><strong>Detalles de logueo incorrectos<\/strong><\/li>\n<\/ol>\n<p>Algunos usuarios ponen un nombre de usuario y contrase\u00f1a incorrectos mientras configuran su cuenta de correo electr\u00f3nico. Lo m\u00e1s habitual suele ser errores de tipo tipogr\u00e1ficos, dejar un espacio en blanco delante o detr\u00e1s del usuario y contrase\u00f1a o incluso al poner el usuario poner solo el nombre cuando lo que hay que poner es el email completo, por ejemplo, <em>minombre@midominio.info<\/em><\/p>\n<p>Cuando el servidor identifica la conexi\u00f3n de un usuario no existente, autom\u00e1ticamente niega el env\u00edo de dicho correo a su destinatario mostrando un error.<\/p>\n<ol start=\"2\">\n<li><strong>Cliente de correo electr\u00f3nico sin autenticaci\u00f3n<\/strong><\/li>\n<\/ol>\n<p>Por lo general, una incorrecta configuraci\u00f3n en el cliente de correo tambi\u00e9n puede causar problemas con los emails. Los detalles de configuraci\u00f3n pueden variar seg\u00fan el tipo de cliente de correo que se utilice. \u00a0Para que los correos funcionen correctamente, el usuario debe habilitar la opci\u00f3n de autenticaci\u00f3n.<\/p>\n<p>Por lo tanto, siempre pedimos a nuestros clientes que verifiquen los detalles de configuraci\u00f3n en los clientes de correo electr\u00f3nico que utilicen, as\u00ed como que tengan habilitada la opci\u00f3n de autenticaci\u00f3n.<\/p>\n<h2><strong>C\u00f3mo Solucionar el Error: \u201c550 5.7.1 Authentication Required\u201d<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30788\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Comosolucionarlo.jpg\" alt=\"Error: \u201c550 5.7.1 Authentication Required\u201d \u00a1C\u00f3mo Solucionarlo!\" width=\"450\" height=\"280\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Comosolucionarlo.jpg 450w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Error-550-AuthenticationRequiered-Comosolucionarlo-350x218.jpg 350w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p><strong>El Error: \u201c550 5.7.1 Authentication Required\u201d tiene muy f\u00e1cil soluci\u00f3n<\/strong>, pr\u00e1cticamente acabamos de decir c\u00f3mo solucionarlo en el p\u00e1rrafo anterior, <strong>tan solo hay que revisar que los datos introducidos en la configuraci\u00f3n del correo electr\u00f3nico son los correctos, as\u00ed como que tenemos habilitada la opci\u00f3n de autenticaci\u00f3n<\/strong>.<\/p>\n<p>El tema de los credenciales incorrectos debido a errores tipogr\u00e1ficos, espacios en blanco y dem\u00e1s se puede ver f\u00e1cilmente e incluso en el caso de la contrase\u00f1a podemos contar que los puntitos que se muestran coinciden con la contrase\u00f1a que estamos poniendo. Lo importante es poner como usuario el email completo, sin dejar espacios en blanco, y en la contrase\u00f1a lo mismo; debemos poner may\u00fasculas si las tuviera, as\u00ed como no dejar espacios en blanco.<\/p>\n<p>Del mismo modo, no habilitar la <strong>autenticaci\u00f3n SMTP<\/strong> en clientes de correo electr\u00f3nico tambi\u00e9n puede causar el error.<\/p>\n<p>Para quienes configuran el email en <strong>Outlook<\/strong>, deben marcar la casilla de\u00a0\u201c<strong>Mi servidor de salida (SMTP) requiere autenticaci\u00f3n\u201d<\/strong>, que podemos encontrar dentro de\u00a0<strong>M\u00e1s Configuraciones<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-30792\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Outlook2016-SMTP-RequiereAutenticacion.jpg\" alt=\"Outlook 2016 SMTP Requiere Autenticacion\" width=\"417\" height=\"500\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Outlook2016-SMTP-RequiereAutenticacion.jpg 417w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2019\/09\/Outlook2016-SMTP-RequiereAutenticacion-350x420.jpg 350w\" sizes=\"auto, (max-width: 417px) 100vw, 417px\" \/><\/p>\n<h3><em>Anexo: Otros Errores 550<\/em><\/h3>\n<ul>\n<li>\n<h2><a title=\"ERROR! 550 No Such User Here \u00bfA que es debido?\" href=\"https:\/\/www.hostinet.com\/formacion\/correo-electronico\/error-550-no-such-user-here\/\">ERROR! 550 No Such User Here \u00bfA que es debido?<\/a><\/h2>\n<\/li>\n<li>\n<h2><a href=\"https:\/\/www.hostinet.com\/formacion\/correo-electronico\/solucionar-error-550-permanent-failure-blocked\/\">C\u00f3mo Solucionar el Error \u201c550 Permanent Failure Blocked\u201d<\/a><\/h2>\n<\/li>\n<li>\n<h2><a title=\"Error: 550 Access denied \u2013 Invalid HELO name (Autenticaci\u00f3n Email)\" href=\"https:\/\/www.hostinet.com\/formacion\/correo-electronico\/error-550-access-denied-invalid-helo-name-autenticacion-email\/\">Error: 550 Access denied \u2013 Invalid HELO name (Autenticaci\u00f3n Email)<\/a><\/h2>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><strong>Si necesitas un Hosting para alojar TUS EM@ils&#8230;<\/strong><\/h2>\n<p>En <strong>Hostinet<\/strong> todos nuestros<strong>\u00a0planes SSD<\/strong>\u00a0vienen de serie con un panel de control\u00a0<strong>cPanel<\/strong>. Dentro de este panel puedes <strong>crear todas las cuentas de em@il que quieras para tus dominios<\/strong>. Y si tienes dudas \u00a1contacta con nosotros! Estaremos encantados de ayudarte con todo lo que necesites. \ud83d\ude09<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.hostinet.com\/hosting-ssd\/\" target=\"_blank\"><img decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2026\/04\/banner_hosting_web_v2.jpg\" alt=\"Hosting SSD NVMe\"><\/a><\/p>\n<div style=\"min-height: 30px; margin-top: 0px; padding-bottom: 7px; z-index: 1;position: relative; float: none;\" class=\"social-container\"><\/div> <!-- x1 -->","protected":false},"excerpt":{"rendered":"<p>Puede que alg\u00fan d\u00eda tengamos una recopilaci\u00f3n de todos los Errores 550 que existen para el correo electr\u00f3nico. Esperemos que esto pueda servir como una especie de base de datos de conocimientos para todos nuestros clientes. \u00a1Solo accesible desde nuestro blog de formaci\u00f3n! De hecho, este es el cuarto Error\u2026 <\/p>\n<div class=\"post-more\">\n<p><a class=\"btn button\" href=\"https:\/\/www.hostinet.com\/formacion\/correo-electronico\/error-550-5-7-1-authentication-required\/\">Sigue leyendo &rarr;<\/a><\/p>\n<\/div>\n","protected":false},"author":13,"featured_media":30791,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67],"tags":[],"class_list":["post-30785","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-correo-electronico"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Error: \u201c550 5.7.1 Authentication Required\u201d<\/title>\n<meta name=\"description\" content=\"Error: \u201c550 5.7.1 Authentication Required\u201d \u00bfProblemas con el correo? 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