{"id":266,"date":"2026-02-18T00:00:00","date_gmt":"2026-02-17T23:00:00","guid":{"rendered":"https:\/\/vsx.is\/?p=266"},"modified":"2026-03-01T08:55:27","modified_gmt":"2026-03-01T07:55:27","slug":"servicios-de-correo-electronico-completos-que-protegen-realmente-su-correo","status":"publish","type":"post","link":"https:\/\/vsx.is\/es\/soukrome-e-mailove-sluzby-ktere-opravdu-chrani-vasi-postu\/","title":{"rendered":"Servicios privados de correo electr\u00f3nico: \u00bfcu\u00e1les protegen realmente su correo?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">La mayor\u00eda de nosotros utilizamos el correo electr\u00f3nico a diario sin pensar en qui\u00e9n m\u00e1s podr\u00eda leer nuestro correo. Los sitios de rese\u00f1as comerciales suelen evaluar a los proveedores de correo electr\u00f3nico por sus caracter\u00edsticas y precio, pero dejan de lado lo m\u00e1s importante: la arquitectura t\u00e9cnica de protecci\u00f3n <a href=\"https:\/\/vsx.is\/es\/firefox-forky-proc-existuji-a-ktery-si-vybrat\/\">Privacidad<\/a>. Proyecto comunitario <a href=\"https:\/\/opensourcereviews.github.io\/email\/index.html\">Rese\u00f1as sobre c\u00f3digo abierto<\/a>, comisariada por usuarios de GitHub, adopta un enfoque diferente: eval\u00faa a los proveedores bas\u00e1ndose en hechos verificables, no en promesas de marketing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En este art\u00edculo resumo sus conclusiones y a\u00f1ado mis propios comentarios.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3mo evaluar la privacidad del correo electr\u00f3nico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La clave para entender toda la comparaci\u00f3n es distinguir entre <strong>privacidad arquitect\u00f3nica<\/strong> a <strong>privacidad basada en la pol\u00edtica<\/strong>. La privacidad arquitect\u00f3nica significa que el proveedor de sus correos electr\u00f3nicos t\u00e9cnicamente <em>No puede<\/em> lectura: los datos se cifran en el lado del cliente antes de ser enviados al servidor. La privacidad basada en pol\u00edticas significa que el proveedor puede leer tus correos electr\u00f3nicos <em>puede<\/em>, pero promete no hacerlo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compara <a href=\"https:\/\/vsx.is\/es\/euro-office-vs-onlyoffice-spor-ktery-rozdelil-evropsky-open-source\/\">C\u00f3digo abierto<\/a> Reviews eval\u00faa a los proveedores en funci\u00f3n de seis criterios: transparencia del c\u00f3digo fuente, auditor\u00edas de seguridad independientes, verificabilidad de la arquitectura de cifrado, transparencia de la organizaci\u00f3n, aplicaci\u00f3n t\u00e9cnica de la protecci\u00f3n de metadatos y comportamiento hist\u00f3rico ante solicitudes legales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cuatro clases de privacidad del correo electr\u00f3nico<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Clase 1: Acceso cero real - servidor personalizado<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La \u00fanica forma de conseguir un cifrado de acceso cero totalmente verificable es gestionar tu propio servidor de correo electr\u00f3nico. Herramientas como Mailcow, Mail-in-a-Box o la combinaci\u00f3n Postfix\/Dovecot son totalmente de c\u00f3digo abierto y te permiten controlar toda la pila, desde el cifrado hasta el registro y la infraestructura f\u00edsica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La desventaja es que el control total conlleva una responsabilidad total. <a href=\"https:\/\/vsx.is\/es\/foss-alternativy-dil-1-bezpecnost-a-soukromi-vedoma-volba-misto-slepe-duvery\/\">Autoalojamiento<\/a> Requiere conocimientos t\u00e9cnicos, mantenimiento y soluciones de entregabilidad del correo electr\u00f3nico. Para la mayor\u00eda de los usuarios, no es una opci\u00f3n realista.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clase 2: Acceso cero reforzado: confiar pero verificar<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Esta categor\u00eda incluye tres proveedores que afirman que no pueden leer el contenido de sus correos electr\u00f3nicos. Sin embargo, todos ellos exigen confianza en que el c\u00f3digo cliente entregado a tu navegador no ha sido comprometido.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/vsx.is\/es\/tuta-nemecky-prukopnik-sifrovaneho-e-mailu\/\">Tutanota<\/a><\/strong> (puntuaci\u00f3n: 2\u00ba puesto) ofrece c\u00f3digo cliente y servidor totalmente abierto, <a href=\"https:\/\/vsx.is\/es\/srovnani-platforem-pro-okamzite-zasilani-zprav\/\">cifrado de extremo a extremo<\/a> pro po\u0161tu, kontakty i kalend\u00e1\u0159e a vlastn\u00ed \u0161ifrovac\u00ed syst\u00e9m. P\u016fsob\u00ed pod n\u011bmeckou jurisdikc\u00ed, m\u00e1 ve\u0159ejn\u00e9 audity a \u010distou provozn\u00ed historii bez z\u00e1va\u017en\u00fdch kontroverz\u00ed. Srovn\u00e1n\u00ed ji ozna\u010duje za nejsiln\u011bj\u0161\u00ed hostovanou <a href=\"https:\/\/vsx.is\/es\/discord-2026-koncove-sifrovani-hovoru-na-jedne-strane-sber-identit-na-druhe\/\">E2EE<\/a> volbu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/vsx.is\/es\/bezpecny-e-mail-co-to-vlastne-znamena-a-potrebujete-to-resit\/\">Correo Proton<\/a><\/strong> (valoraci\u00f3n: 3er puesto) tiene aplicaciones cliente parcialmente abiertas, pero el c\u00f3digo del servidor permanece cerrado. Ofrece una s\u00f3lida arquitectura criptogr\u00e1fica y jurisdicci\u00f3n suiza. Un problema de confianza es un incidente de 2021 en el que registr\u00f3 y entreg\u00f3 la direcci\u00f3n IP de un activista clim\u00e1tico en virtud de una orden judicial, a pesar de que previamente hab\u00eda anunciado que no registraba direcciones IP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>AtomicMail<\/strong> (valoraci\u00f3n: 4\u00ba) es un proveedor m\u00e1s reciente con una arquitectura de acceso cero reforzada (AES-256, ECIES). El c\u00f3digo est\u00e1 cerrado, s\u00f3lo est\u00e1 disponible el libro blanco de seguridad. El corto historial y la limitada transparencia implican un mayor requisito de confianza.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clase 3: Proveedores tradicionales con PGP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Estos proveedores pueden leer tus correos por defecto, pero ofrecen un fuerte soporte de encriptaci\u00f3n PGP\/S-MIME. La privacidad depende de la actividad del usuario.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Buz\u00f3n.org<\/strong> (5\u00ba puesto) es un proveedor alem\u00e1n con buena reputaci\u00f3n y fuerte soporte de PGP. Sin PGP activado, los correos electr\u00f3nicos se almacenan sin cifrar. <strong>Posteo<\/strong> (6\u00ba puesto) se diferencia por admitir el registro an\u00f3nimo, aceptar pagos en efectivo por correo y eliminar las direcciones IP en la medida de lo posible. Deliberadamente no admite dominios personalizados. <strong>Kolab Ahora<\/strong> (7\u00ba puesto) es un proveedor suizo basado en una pila de groupware de c\u00f3digo abierto con soporte para PGP y otras funciones ofim\u00e1ticas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clase 4: Correo electr\u00f3nico convencional - sin privacidad<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Esto incluye servicios que, en comparaci\u00f3n, no deber\u00edan considerarse en absoluto proveedores privados de correo electr\u00f3nico.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/vsx.is\/es\/historie-e-mailu-od-vojenskeho-experimentu-po-48-miliardy-uzivatelu\/\">Gmail<\/a><\/strong> (8\u00ba puesto) es un servicio propio con gran capacidad de recopilaci\u00f3n de metadatos y escaneado de contenidos. El cifrado de clientes s\u00f3lo est\u00e1 disponible para las ediciones empresariales <a href=\"https:\/\/vsx.is\/es\/jeden-ekosystem-nebo-digitalni-mozaika-tri-cesty-k-organizaci-online-zivota\/\">Google<\/a> Espacio de trabajo. <strong>Fastmail<\/strong> (#9) ofrece una excelente experiencia de usuario e implementaci\u00f3n IMAP\/SMTP, pero no E2EE - y cae bajo jurisdicci\u00f3n australiana (parte de la alianza Five Eyes). <strong>HEY<\/strong> (10\u00ba puesto) se centra en el flujo de trabajo innovador, no en la privacidad, y no ofrece cifrado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cuadro sin\u00f3ptico<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Ubicaci\u00f3n<\/th><th>Proveedor<\/th><th>C\u00f3digo abierto<\/th><th>Auditor\u00edas<\/th><th>Registro an\u00f3nimo<\/th><th>Acceso cero<\/th><th>E2EE<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td><a href=\"https:\/\/vsx.is\/es\/twake-workplace-evropsky-open-source-workplace-zamereny-na-soukromi\/\">Autoalojamiento<\/a><\/td><td>S\u00ed<\/td><td>A medida<\/td><td>\u2014<\/td><td>S\u00ed<\/td><td>S\u00ed<\/td><\/tr><tr><td>2<\/td><td>Tutanota<\/td><td>Completamente<\/td><td>S\u00ed<\/td><td>S\u00ed<\/td><td>Endurecido<\/td><td>S\u00ed<\/td><\/tr><tr><td>3<\/td><td><a href=\"https:\/\/vsx.is\/es\/proton-ecosystem-audit-2026-co-audit-ukazuje-a-jak-cist-komunitni-analyzy\/\">Prot\u00f3n<\/a> Correo<\/td><td>En parte<\/td><td>S\u00ed<\/td><td>S\u00ed<\/td><td>Endurecido<\/td><td>S\u00ed<\/td><\/tr><tr><td>4<\/td><td>AtomicMail<\/td><td>No<\/td><td>Restringido<\/td><td>S\u00ed<\/td><td>Endurecido<\/td><td>S\u00ed<\/td><\/tr><tr><td>5<\/td><td>Buz\u00f3n.org<\/td><td>En parte<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>PGP<\/td><\/tr><tr><td>6<\/td><td>Posteo<\/td><td>En parte<\/td><td>No<\/td><td>S\u00ed<\/td><td>No<\/td><td>PGP<\/td><\/tr><tr><td>7<\/td><td>Kolab Ahora<\/td><td>S\u00ed<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>PGP<\/td><\/tr><tr><td>8<\/td><td>Gmail<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><\/tr><tr><td>9<\/td><td>Fastmail<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><\/tr><tr><td>10<\/td><td>HEY<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Lo que hay que aprender<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Si le preocupa la privacidad de sus comunicaciones por correo electr\u00f3nico, la lecci\u00f3n clave es sencilla: no basta con confiar en promesas, la arquitectura importa. El autoalojamiento sigue siendo el \u00fanico camino totalmente verificable. De los servicios alojados, Tutanota es el mejor por su c\u00f3digo totalmente abierto y su historial limpio. Proton Mail es t\u00e9cnicamente s\u00f3lido, pero el incidente del activista clim\u00e1tico demuestra que incluso <a href=\"https:\/\/vsx.is\/es\/bezpecne-komunikatory-ktery-messenger-skutecne-chrani-vase-soukromi\/\">Jurisdicci\u00f3n suiza<\/a> tiene sus l\u00edmites.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para los usuarios que no quieran o no puedan cambiar a un proveedor dedicado, el paso m\u00e1s sencillo para mejorar su configuraci\u00f3n es <a href=\"https:\/\/vsx.is\/es\/e-mailove-aliasy-a-proxy-sluzby-simplelogin-addy-io-firefox-relay-a-proxiedmail-v-praxi\/\">Cifrado PGP<\/a> con servicios como Mailbox.org o Posteo. Los servicios convencionales como Gmail, Fastmail y HEY simplemente no est\u00e1n dise\u00f1ados pensando en la privacidad.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fuente de comparaci\u00f3n: <a href=\"https:\/\/opensourcereviews.github.io\/email\/index.html\">Los mejores proveedores de correo electr\u00f3nico privado seleccionados por los usuarios de Github - Open Source Reviews<\/a><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>V\u011bt\u0161ina z n\u00e1s pou\u017e\u00edv\u00e1 e-mail ka\u017ed\u00fd den, ani\u017e by se zam\u00fd\u0161lela nad t\u00edm, kdo dal\u0161\u00ed si m\u016f\u017ee na\u0161i po\u0161tu p\u0159e\u010d\u00edst. 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