unable to telnet to port 25
I am trying to setup the CommuniGate Pro mail application as a POP3/SMTP mail server. I have completed everything, and I can recieve mail but I can't send. When I try to telnet to port 25 it states connection refused.
I have installed the app on a Linux suse 9 OS.
I have done an nmap, and found port 25 to be open.
I'm a bit lost !!!