Email account forward bounce email

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1

Good Day,

I have the following strage behaviour with Virtualmin that I can’t figure out.
I have the email account test@domain that is configured onto a web form and that is sending confirmations as forward email(the test@domain is not directly monitored) to office@domain. But in this case the sent emails are bounced with error: “status=bounced (unknown user: “office”)”
If I check the deliver to mailbox and forward emails to office@domain, the emails are delivered to the test@domain as it should but it doesn’t forward the emails for this account(same bounce error)
Sending emails directly between the 2 email accounts works and emails arrived with no issues in both inboxes.
Any ideas on what I should change or investigate further?

SYSTEM INFORMATION
OS type and version Debian Linux 10
Virtualmin version 7.5
2

So are you using an alias to redirect test@ to office@ or a mailbox with forwarding ?

Eitherway, to track this down you’ll need to look in the /var/log/maillog and see what postfix is doing with the email. All will be clear then.

3

Both mailboxes are created as accounts not aliases, in logs I have the following:
“postfix/local[4595]: 58812A47888: to=office@domain, orig_to=test@domain, relay=local, delay=2, delays=2/0/0/0.01, dsn=5.1.1, status=bounced (unknown user: “office”)”

4

So postfix thinks (and is probably right) that office@domain is local (is it?) If so, then office@domain should be listed in /etc/postfix/virtual (is it?). If its not and its local then it should be, if its not and office@domain is not local then it thinks it is probably because its been told its to handle email for domain. Make sense?

5

Both mailboxes are local(on the same server and they have the same domain).
The office@domain is present in /etc/postfix/virtual with a mapping like office@domain.com office-domain.com
The strange thing is that all the domains onto the server show the same behaviour(forward not working from one mailbox to the other)

6

This matter is resolved as the solution worked for me

7

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