220 response when testing port 25

[remax sunset]

I can't do smtp messaging from my pc.. don't have a problem with snpp but not many carriers offer that service. I did the test and got the 220 response. I am running a windows xp. When I did the test to see if the smtp's were being blocked it came back with this response:

220 qs1534.pair.com ESMTP postfix

What can I do to correct the problem.. I think this is the only thing that's keeping me from doing smtp through AT&T,Verizon, and T-Mobile.

PLEASE HELP!!!!

[Tech Support]

Well... that means prot 25 is open but it doesn't necessarily mean that the carriers are going to accept the traffic from your computer(s).

Try this:

telnet atlsmtp.cingularme.net 25

Let me know what happens.

[remax sunset]

the response i get entering telnet atlsmtp.cingularme.net 25 is this :

220 atledge02.cingularme.com ESMTP server <InterMail vG.1.02.00.03 201-2136-104-103-20050318> ready Fri, 5 Dec 2008 16:07:38 -0500
421 atledge02.cingularme.com Lost connection to [71.98.192.172]

Connection to host lost.

[Tech Support]

Hmm... if you would, send your log file over to support at notepage dot com. At this point, I'm leaning in the direction of it either being a DNS or Firewall issue.