Hallo zusammen,
Ich habe das Problem, dass ich seit einiger Zeit keine Mails mehr an @gmail (also Google) Adressen mehr zustellen kann. Es erscheint dann folgende Meldung:
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michaeloliverpeter@gmail.com host gmail-smtp-in.l.google.com [2a00:1450:4013:c07::1a] SMTP error from remote mail server after end of data: 550-5.7.26 This mail is unauthenticated, which poses a security risk to the 550-5.7.26 sender and Gmail users, and has been blocked. The sender must 550-5.7.26 authenticate with at least one of SPF or DKIM. For this message, 550-5.7.26 DKIM checks did not pass and SPF check for [clockworkgames.ch] did 550-5.7.26 not pass with ip: [2a00:d70:0:e::313]. The sender should visit 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for 550 5.7.26 instructions on setting up authentication. b2-20020aa7c902000000b0051de4b8b892si1279496edt.248 - gsmtpCode
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Date: Sun, 2 Jul 2023 09:18:34 +0200
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To: michaeloliverpeter@gmail.com
From: Michael Peter <michael.peter@clockworkgames.ch>
Subject: test
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X-Exim-DSN-Information: Due to administrative limits only headers are returnedKönnt ihr mir sagen, woran das liegt? Dies war nicht immer so, ich konnte normal Mails an gmail adressen verschicken. Dann ging plötzlich nur ca. nur noch jede 3. Mail und jetzt geht gar keine mehr durch. Dieses Problem tritt auch nur bei gmail adressen auf.
Danke bereits für eure Hilfe
Michael