In the message from the dovecot the <localuser>@<server> is written, this information is of no use to the sender, because he does not know the local user name of the receiver.
The bounce mail must therefore contain the e-mail address that the sender has addressed, the virtual address so to speak. Mit freundlichen Grüßen Yours sincerely Pascal Rudolf -----Ursprüngliche Nachricht----- Von: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> Im Auftrag von Wietse Venema Gesendet: Donnerstag, 22. April 2021 20:50 An: Postfix users <postfix-users@postfix.org> Betreff: Re: AW: Change default reject message rud...@padaru.de: > Good evening, > Unfortunately, I have to revisit my topic from back in the day.... > > Sending the proper reject-messages through the postfix works wonderfully, as long as it is an external sender. > > But now if a local sender sends an email to the full mailbox, again the Dovecot replies, or the program what generates the message mentioned at the beginning: > > ## > Your message to <localu...@my.server.com> was automatically discarded: > ## Why discard over-quota email? If you allow Dovecot to reject delivery, then the local sender will receive a proper delivery status notification. Wietse