The postfix add-on software "smtpprox" can do exactly what you want, with a
little modification. Since smtpprox is written in perl it can adversely
affect system load, but it works very well for us and the affect on our
system load is negligible.
Antonio Navarro Navarro wrote:
Hi all!
I have configured a Postfix server with amavisd and spammassassin as
relay server for several domains. All the mails sent to @example1.com
and @example2.com are received in the postfix server, and then
redirected to the real mail server for this domai
