Hallo,

ich wollte eine 'recht wichtige' E-Mail verschicken. Nun nutzt der Empfänger ein Telekompostfach und die E-Mail kommt nicht durch;

Der Fehler:

This is the mail system at host mail.xxx.##################################################################### THIS IS A WARNING ONLY.  YOU DO NOT NEED TO RESEND YOUR MESSAGE. #####################################################################Your message could not be delivered for more than 4 hour(s).It will be retried until it is 5 day(s) old.For further assistance, please send mail to postmaster.If you do so, please include this problem report. You candelete your own text from the attached returned message.The mail system<info@xxx>: host smtp-02.tld.t-online.de[194.25.134.12] refused totalk to me: 554 IP=xxx - A problem occurred. Ask your postmasterfor help or to contact tosa@rx.t-online.de to clarify. (TEM)Reporting-MTA: dns; mail.xxxX-Postcow-Queue-ID: 3793C3FE47X-Postcow-Sender: rfc822; web@xxxArrival-Date: Sat, 25 Jan 2025 21:29:47 +0100 (CET)Final-Recipient: rfc822; xxxOriginal-Recipient: rfc822;info@xxxAction: delayedStatus: 4.0.0Remote-MTA: dns; smtp-02.tld.t-online.deDiagnostic-Code: smtp; 554 IP=xxx - A problem occurred. Ask yourpostmaster for help or to contact tosa@rx.t-online.de to clarify. (TEM)Will-Retry-Until: Thu, 30 Jan 2025 21:29:47 +0100 (CET)

Ich betreibe eine eigene Mailcow.

Herzlichen Dank,

Tin