main.cf:
virtual_alias_maps = proxy:mysql:/etc/postfix/mysql/virtual_alias_maps.cf
master.cf:
smtpd pass - - n - 500 smtpd
[no -o parameter=value]
With these two lines, the Postfix SMTP server will not reject
recipients with "user unknown" when their address is listed in
virtual_alias_maps. As long as the virtual_alias_maps lookup
produces a result, the SMTP server will accept the mail. It does
not matter what the lookup result looks like. This is in fact a
known limitation of Postfix; it does not try to find out if the
result address should be rejected as "user unknown".
If your Postfix server behaves in a different manner, then it
has been modified.
Wietse
