http:\/\/www.heise.de\/newsticker\/meldung\/United-Internet-verschaerft-Spam-Bekaempfung-3225281.html<\/a><\/p>\nGut gemeinter Phishing-Schutz geht nach hinten los?<\/p>\n","protected":false},"excerpt":{"rendered":"
F\u00fcr alle, die in den letzten Tagen Probleme mit verlorengegangenen oder nicht zustellbaren Emails im Zusammenhang mit 1und1, we.de oder gmx gehabt haben, hier zwei lesenswerte Artikel dazu: sehr kompetent technisch beschrieben: https:\/\/www.heinlein-support.de\/blog\/news\/gmx-de-und-web-de-haben-mail-rejects-durch-spf\/ und bei heise: http:\/\/www.heise.de\/newsticker\/meldung\/United-Internet-verschaerft-Spam-Bekaempfung-3225281.html Gut gemeinter Phishing-Schutz geht nach hinten los?<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[18,26],"class_list":["post-493","post","type-post","status-publish","format-standard","hentry","category-it-sicherheit","tag-phishing","tag-sicherheit"],"yoast_head":"\n
united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen<\/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:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen\" \/>\n<meta property=\"og:description\" content=\"F\u00fcr alle, die in den letzten Tagen Probleme mit verlorengegangenen oder nicht zustellbaren Emails im Zusammenhang mit 1und1, we.de oder gmx gehabt haben, hier zwei lesenswerte Artikel dazu: sehr kompetent technisch beschrieben: https:\/\/www.heinlein-support.de\/blog\/news\/gmx-de-und-web-de-haben-mail-rejects-durch-spf\/ und bei heise: http:\/\/www.heise.de\/newsticker\/meldung\/United-Internet-verschaerft-Spam-Bekaempfung-3225281.html Gut gemeinter Phishing-Schutz geht nach hinten los?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\" \/>\n<meta property=\"og:site_name\" content=\"Blog artif T\u00fcbingen\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/TYPO3-Agentur-artif-Gmbh-Co-KG\/101490748200\" \/>\n<meta property=\"article:published_time\" content=\"2016-06-07T16:39:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-06-25T06:28:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/artif.com\/blog\/wp-content\/uploads\/2021\/05\/artif-logo.png\" \/>\n\t<meta property=\"og:image:width\" content=\"512\" \/>\n\t<meta property=\"og:image:height\" content=\"512\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Andreas Brus\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@artifcom\" \/>\n<meta name=\"twitter:site\" content=\"@artifcom\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Andreas Brus\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\"},\"author\":{\"name\":\"Andreas Brus\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#\\\/schema\\\/person\\\/23ac7b0aacd4a4c89b1961e28dd37c0a\"},\"headline\":\"united-internet: 1und1, gmx und web.de lehnen Mails ab\",\"datePublished\":\"2016-06-07T16:39:36+00:00\",\"dateModified\":\"2021-06-25T06:28:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\"},\"wordCount\":68,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#organization\"},\"keywords\":[\"Phishing\",\"Sicherheit\"],\"articleSection\":[\"IT-Sicherheit\"],\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\",\"url\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\",\"name\":\"united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#website\"},\"datePublished\":\"2016-06-07T16:39:36+00:00\",\"dateModified\":\"2021-06-25T06:28:15+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Startseite\",\"item\":\"https:\\\/\\\/artif.com\\\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"united-internet: 1und1, gmx und web.de lehnen Mails ab\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/artif.com\\\/blog\\\/\",\"name\":\"Blog artif T\u00fcbingen\",\"description\":\"Blog von artif aus T\u00fcbingen: Internetagentur, Webdesign und TYPO3 von den Web Experts f\u00fcr Internet und Intranet aus T\u00fcbingen.\",\"publisher\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/artif.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"de\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#organization\",\"name\":\"artif T\u00fcbingen\",\"url\":\"https:\\\/\\\/artif.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/artif.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/logo-artif-cs5_rgb.png\",\"contentUrl\":\"https:\\\/\\\/artif.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/logo-artif-cs5_rgb.png\",\"width\":1902,\"height\":528,\"caption\":\"artif T\u00fcbingen\"},\"image\":{\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/pages\\\/TYPO3-Agentur-artif-Gmbh-Co-KG\\\/101490748200\",\"https:\\\/\\\/x.com\\\/artifcom\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/artif.com\\\/blog\\\/#\\\/schema\\\/person\\\/23ac7b0aacd4a4c89b1961e28dd37c0a\",\"name\":\"Andreas Brus\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g\",\"caption\":\"Andreas Brus\"},\"sameAs\":[\"https:\\\/\\\/artif.com\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html","og_locale":"de_DE","og_type":"article","og_title":"united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen","og_description":"F\u00fcr alle, die in den letzten Tagen Probleme mit verlorengegangenen oder nicht zustellbaren Emails im Zusammenhang mit 1und1, we.de oder gmx gehabt haben, hier zwei lesenswerte Artikel dazu: sehr kompetent technisch beschrieben: https:\/\/www.heinlein-support.de\/blog\/news\/gmx-de-und-web-de-haben-mail-rejects-durch-spf\/ und bei heise: http:\/\/www.heise.de\/newsticker\/meldung\/United-Internet-verschaerft-Spam-Bekaempfung-3225281.html Gut gemeinter Phishing-Schutz geht nach hinten los?","og_url":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html","og_site_name":"Blog artif T\u00fcbingen","article_publisher":"https:\/\/www.facebook.com\/pages\/TYPO3-Agentur-artif-Gmbh-Co-KG\/101490748200","article_published_time":"2016-06-07T16:39:36+00:00","article_modified_time":"2021-06-25T06:28:15+00:00","og_image":[{"width":512,"height":512,"url":"https:\/\/artif.com\/blog\/wp-content\/uploads\/2021\/05\/artif-logo.png","type":"image\/png"}],"author":"Andreas Brus","twitter_card":"summary_large_image","twitter_creator":"@artifcom","twitter_site":"@artifcom","twitter_misc":{"Verfasst von":"Andreas Brus"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#article","isPartOf":{"@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html"},"author":{"name":"Andreas Brus","@id":"https:\/\/artif.com\/blog\/#\/schema\/person\/23ac7b0aacd4a4c89b1961e28dd37c0a"},"headline":"united-internet: 1und1, gmx und web.de lehnen Mails ab","datePublished":"2016-06-07T16:39:36+00:00","dateModified":"2021-06-25T06:28:15+00:00","mainEntityOfPage":{"@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html"},"wordCount":68,"commentCount":0,"publisher":{"@id":"https:\/\/artif.com\/blog\/#organization"},"keywords":["Phishing","Sicherheit"],"articleSection":["IT-Sicherheit"],"inLanguage":"de","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#respond"]}]},{"@type":"WebPage","@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html","url":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html","name":"united-internet: 1und1, gmx und web.de lehnen Mails ab - Blog artif T\u00fcbingen","isPartOf":{"@id":"https:\/\/artif.com\/blog\/#website"},"datePublished":"2016-06-07T16:39:36+00:00","dateModified":"2021-06-25T06:28:15+00:00","breadcrumb":{"@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/artif.com\/blog\/united-internet-1und1-gmx-und-web-de-lehnen-mails-ab.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Startseite","item":"https:\/\/artif.com\/blog"},{"@type":"ListItem","position":2,"name":"united-internet: 1und1, gmx und web.de lehnen Mails ab"}]},{"@type":"WebSite","@id":"https:\/\/artif.com\/blog\/#website","url":"https:\/\/artif.com\/blog\/","name":"Blog artif T\u00fcbingen","description":"Blog von artif aus T\u00fcbingen: Internetagentur, Webdesign und TYPO3 von den Web Experts f\u00fcr Internet und Intranet aus T\u00fcbingen.","publisher":{"@id":"https:\/\/artif.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/artif.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"de"},{"@type":"Organization","@id":"https:\/\/artif.com\/blog\/#organization","name":"artif T\u00fcbingen","url":"https:\/\/artif.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/artif.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/artif.com\/blog\/wp-content\/uploads\/2021\/03\/logo-artif-cs5_rgb.png","contentUrl":"https:\/\/artif.com\/blog\/wp-content\/uploads\/2021\/03\/logo-artif-cs5_rgb.png","width":1902,"height":528,"caption":"artif T\u00fcbingen"},"image":{"@id":"https:\/\/artif.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/pages\/TYPO3-Agentur-artif-Gmbh-Co-KG\/101490748200","https:\/\/x.com\/artifcom"]},{"@type":"Person","@id":"https:\/\/artif.com\/blog\/#\/schema\/person\/23ac7b0aacd4a4c89b1961e28dd37c0a","name":"Andreas Brus","image":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/secure.gravatar.com\/avatar\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/e1d9a4c933975d228f04533e41539195768e3917e60c27e2697f409c38d90d5f?s=96&d=identicon&r=g","caption":"Andreas Brus"},"sameAs":["https:\/\/artif.com\/"]}]}},"publishpress_future_action":{"enabled":false,"date":"2026-05-10 07:47:16","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/posts\/493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/comments?post=493"}],"version-history":[{"count":1,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/posts\/493\/revisions"}],"predecessor-version":[{"id":494,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/posts\/493\/revisions\/494"}],"wp:attachment":[{"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/media?parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/categories?post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artif.com\/blog\/wp-json\/wp\/v2\/tags?post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}