What is your ISP?

Your ISP may be blocking your access to our SMTP server. Many now do that and force you to use theirs. Check the tech support web site for your ISP to find out what server you should use for your outgoing mail.

ISP What server to use?
Ameritech DSL Chicago mailhost.chi.ameritech.net or mailhost.det.ameritech.net
Ameritech SBC Chicago mailhost.chi.ameritech.net
AOL There seem to be some problems with SMTP authentication and the AOL SMTP proxy system. We're checking with AOL on what needs to be done. Please check back here later.
AT&T Broadband depends on your location, probably mail.attbi.com
AT&T Global smtp1.attglobal.net
AT&T Worldnet mailhost.att.net
Comcast smtp.comcast.net
CompuServe gsbims.uchicago.edu
Cox High Speed Internet depends on your location, probably smtp.central.cox.net
Earthlink mail.earthlink.net or smtp.earthlink.net
Mindspring mail.earthlink.net or smtp.earthlink.net
MSN smtp.email.msn.com
NetZero smtp.netzero.net
RoadRunner see their help website
SBC Yahoo smtp.sbcglobal.yahoo.com
Telocity smtp.dsl.telocity.com