I tried adding the line to master.cf, and restarting postfix, however, I can not connect. telnet localhost 26 (I set up for port 26 since Optimum doesn't block this port) and can not communicate with smtp.
here is the line I added to master.cf
26 inet n - n - - smptd
Here is my session with telnet:
[root@www postfix]# telnet localhost 26
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
I'm running ISPConfig 3 with the centos 5 perfect host setup. I need this working as we are on optimum (sic) which blocks port 25, and I'd like to be able to use my own mailserver.