On a rackspace cloud server, I opened up Putty and it WORKS if I do "telnet localhost 25" on the VPS, the postfix process is running as well
However, if I try to telnet remotely like "telnet domain.com 25" it doesn't work, I've tried "telnet domain.com 22" and it works.
C:\Users\Shane>telnet domain.com 25
Connecting To domain.com...Could not open connection to the host, on por
t 25: Connect failed