Vista Windows Mail Problem

I posted a half hour or so ago, but I cannot find my post now. It's not even listed under my user name, as if it was deleted. Sorry if this is a duplicate. I am a new user on this forum.

I am having problems with being able to send email with Windows Mail on a Toshiba laptop. It is running Vista Home Premium 64-bit OS. My ISP is Centurytel and the computer is having the problems on a university network (daughter's computer). University & Centurytel IT personell say all the settings are correct and it should be working fine. Mail can be received, just not sent, with or without anti-virus (Trend Micro) & spyware (SpySweeper) turned on. Here is the message I get when attempting to send mail:

"Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Subject 'Hi Arch!!!!', Account: 'Ashley Vitense', Server: 'smtpauth.centurytel.net', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0F"

Thanks for any help.

Kurt

Does the University block port 25? I bet it does. Try port 587 instead.

S-

You nailed it! Changed ports & it worked! I LOVE forums like this. One reply from someone that knows what they're talking about and presto! (Can you tell I'm excited?) I spent too long on the phone only to be a bit frustrated. Just one more ???, why port 587? Would another number work or just that one. Thanks again!

Kurt

kvitense,

Ports 25 and 587 are standard email submission ports. Port 25 is the most commonly used port while port 587 is being used more and more. Especially for authenticated SMTP services.

You can't use just any old port number. The server your email client is talking to must be configured to support the port number used.

S-

Great. Again, kudos!