Mehmet Tolga Avcioglu: > I eventually fixed it by adding a transport rule "* > relay:127.0.0.1:10025" and having the other MTA listen on 10025, but > wondering if this is the best way. I would rather touch the other MTA > as little as possible and current setup requires me to do some > configuration there.
You need to set inet_interfaces and proxy_interfaces to the empty value. The Postfix SMTP client will never send mail to port 25 on an IP address that is listed in inet_interfaces or proxy_interfaces. Wietse