IMPORTANT - YOUR ISP MAY BLOCK SENDING MAIL (PORT 25)

To help prevent spam by stopping unauthorized transmission of junk email, many ISP's are tightening their network security.  ISP's may only allow you to send outbound email through their own mail servers.  This helps prevent hackers from using "Zombies" to spew thousands or emails from PC's that have been compromised by a virus or trojan horse attack and turned into malicious jumk email generators.

The standard Internet email system uses something called "Port 25" for sending out email.  If you ISP has implemented this enhanced security, they will only allow you to connect to their mail server and they will automatically block your PC from connecting to any other mail server.

If you try to connect to any other mail server, your email server will fail - often with a somewhat cryptic error mesage such as "Timeout - unable to contact SMTP server...."

The simplest solution is to configure your email server to use your ISP for your delivering your outbound mail.  This will work fine with your domain name email and is the recommended solution.

Listed below are some popular ISP's and links that will help you find the mail server information needed to change your software configuration (we do not endorse or recommend any specific ISP):

ISP	Outgoing Mail Server
AT&T WorldNet	mailhost.worldnet.att.net
Comcast/ATTBI	smtp.comcast.net
Cox.net	smtp.west.cox.net, smtp.east.cox.net
EarthLink	mail.earthlink.net
ISPWest	smtp.ispwest.com
Microsoft's MSN	smtp.email.msn.com
MindSpring	smtp.mindspring.com
NetZero	smtp.netzero.net
People PC	mail.peoplepc.com
Prodigy Internet	smtp.prodigy.net
SBC	smtp.wans.yahoo.com, smtp.swbell.yahoo.com, smtp.snet.yahoo.com, smtp.sbcglobal.yahoo.com, smtp.prodigy.yahoo.com, smtp.pacbell.yahoo.com, smtp.nvbell.yahoo.com, smtp.flash.yahoo.com, smtp.ameritech.yahoo.com
Sprynet	smtp.sprynet.com
Verio	mail.verio.net
Verizon (Dial-Up)	smtp.verizon.net, smtp.vzavenue.net