Hi,
i am currently trying to set up a Mailcow server, Sending mails works great, receiving mails not so well. As soon as I send an Email from an External email to my Mailcow, I get an email from the server with this error:
`test@example.de: unknown user: “test”
Reporting-MTA: dns; mail.example.de
X-Postcow-Queue-ID: DC501ED96C
X-Postcow-Sender: rfc822; max@mustermann.email
Arrival-Date: Sat, 18 Nov 2023 14:10:34 +0100 (CET)
Final-Recipient: rfc822; test@example.de
Original-Recipient: rfc822;test@example.de
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Postcow; unknown user: “test”`
However, sending mails within the server from one mailbox to another also seems not to work.
How can I fix this?