![\"Speedport](\"https:\/\/markus-schall.de\/wp-content\/uploads\/speedport-w724v-full1.jpg\" "\\"Speedport")
<\/p>\nThe things you experience when you simply want to send an e-mail with Mac OS X 10.10 \"Yosemite\" in a foreign WLAN! For example, that it doesn't work with any of the SMTP servers set up, even though sending emails on the home network is completely problem-free. Even more puzzling was the fact that another MacBook Pro under Mac OS X 10.8 \"Mountain Lion\" was able to send e-mails without any problems. This ruled out a problem with the firewall, and despite 25 years of IT experience, I stood there like an ox in front of a mountain. When the answer to my question as to which DSL provider I was using was Telekom, it dawned on me that the problem would most likely be here, because everything was always a bit different with T-Online...<\/p>\n
So I used the well-known search engine and actually came across a problem that probably occurs in connection with the Telekom router \"Speedport W 724V\". The first entries were from 2011, but I already know from experience that the \"Telekom people\" are not always the fastest when it comes to troubleshooting. A quick check revealed that the Speedport W 724V is actually being used in that network. By default, this router blocks the sending of e-mails via numerous providers, allegedly to prevent the sending of spam mails. For this purpose, the router has a list of \"secure e-mail servers\", which will presumably only contain large and well-known providers such as T-Online, Freenet, GMX or similar. All other SMTP mail servers are simply blocked by routers of this type, resulting in a timeout error when sending an e-mail. Incidentally, iCloud addresses from Apple are also not on the list of secure email servers and no emails can be sent via these either.<\/p>\n
<\/p>\n
Unfortunately, Telekom has apparently not yet solved this problem, for example by expanding the \"list of secure e-mail servers\" or making this function more user-friendly. Fortunately, however, there is a solution to the problem:<\/p>\n
From now on, you should be able to send emails via any email provider without any problems. I have not checked why the other MacBook Pro under Mac OS X 10.8 \"Mountain Lion\" was still able to send e-mails. However, I suspect that it is not due to the operating system, but that the e-mail provider \"Freenet\", which was set up on the device, was in the router's list of secure e-mail servers and was therefore not blocked.<\/p>","protected":false},"excerpt":{"rendered":"
The things you experience when you simply want to send an e-mail with Mac OS X 10.10 \"Yosemite\" in a foreign WLAN! For example, that it doesn't work with any of the SMTP servers set up, even though sending emails on the home network is completely problem-free. Even more puzzling was that another MacBook Pro under Mac ... Read more<\/a><\/p>","protected":false},"author":1,"featured_media":2879,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":7,"footnotes":""},"categories":[1,147,4],"tags":[],"class_list":["post-2005","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-allgemein","category-hardware","category-tipps-anleitungen"],"_links":{"self":[{"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/posts\/2005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/comments?post=2005"}],"version-history":[{"count":2,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/posts\/2005\/revisions"}],"predecessor-version":[{"id":2880,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/posts\/2005\/revisions\/2880"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/media\/2879"}],"wp:attachment":[{"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/media?parent=2005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/categories?post=2005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markus-schall.de\/en\/wp-json\/wp\/v2\/tags?post=2005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}