list of ISP SMTP servers
Created on 2005-Oct-18
Updated on 2005-Oct-18
http://www.thedomainworks.com/smtp_settings.php (source)
Carrier Server Address
Adelphia mail.adelphia.net
America Online (AOL) smtp.aol.com
Atlantic Broadband smtp.atlanticbb.net
AT&T (Broadband) mail.attbi.com