Solution: SMTP-relay not working with alias-names

Hi there,
I gave a few projects a new home.
Some pages have moved from Debian 10 to Ubuntu 18.04.
Importing the tar files and creating the users was no problem.

The only problem was the e-mail delivery to mailboxes with alias names. While the main account was able to receive email without any problems, alias accounts said “SMTP-relay deny”.

The simple solution: Call up the e-mail account and save the user information again without changing it.

Best regards