‎Undelivered Mail Returned to Sender | Telekom hilft Community

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Undelivered Mail Returned to Sender

7 years ago

Meine Mails werden nicht mehr an E-Mail-Adressen im Ausland verschickt, sondern ich bekomme eine Benachrichtigung auf Englisch (!!): z.B. "Server IP xxxxx listed as abusive", obwohl es sich um verlässliche Adressen handelt. Wie kann ich die Empfänger als vertrauenswürdig kennzeichnen?

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