Hi,
Did you select "No encryption" under security?
Also, SMTP is typically port 587 or 25 (when not using encryption).
In addition to what Rachel said, you could email me at kmansoft / gmail, and let me know what server names and ports you're using.
Even when I don't have an account somewhere, I can still try to connect to see if that server name / port combo is valid (without trying to authenticate, of course).