Synopsis
Client’s Virtualmin server failing perpetually with:
dsn=5.1.1, status=bounced (User unknown in virtual alias table)
Client mucked about with the standard config.
mc -e /etc/postfix/virtual show correct mappings, e.g.
[email protected] [email protected]
However, after much testing, it appears this is the way:
[email protected] name-example.com
Solution was partially obtained by:
Enable verbose for Postfix SMTP server
Add -v or -vv flags to master.cf
smtp inet n - y - - smtpd -v
You can also add -v or -vv to pickup or cleanup services if testing sendmail-style commands.
pickup made a lot of difference
Now the log file is extremely detailed!
More testing commands
postmap -q [email protected] hash:/etc/postfix/virtual
postconf virtual_alias_maps
Do this on the server to see a bounce:
echo test | mail -s "Test" [email protected]