Tools | Accounts | Mail | Properties | Servers. In the Outgoing (SMTP) field
do you have smtp.xxxx.cox.net? xxxx being east or west, etc. depending on
your area, or do you see 127.0.0.1?

If you don't have the correct server information, correct it.

This is usually caused by scanning e-mail, or an anti-spam program.

Turn off e-mail scanning in your anti-virus program. It is a redundant layer
of protection that eats up CPUs and causes a multitude of problems such as
time-outs and account setting changes. Your up-to-date A/V program will
continue to protect you sufficiently. For more, see:
http://www.oehelp.com/OETips.aspx#3
--
Bruce Hagen
MS-MVP Outlook Express
~IB-CA~

"Andrea" wrote in message
...
I keep getting an error message when trying to send mail. It stopped for a
while this morning, and now it's returned. It happens for a test message
that has no attachment and only one word in the message and for a brief
message with an attachment. The error has two parts:

1. The message could not be sent because its size exceeded the server's
limit. You can use the option, located in Tools | Accounts | Properties |
Advanced, to break messages into smaller parts. Subject 'test new',
Account: ', Server: '127.0.0.1', Protocol: SMTP,
Server Response: '552 xspR1W0015T45M80000000 This message was
undeliverable. This message has been found to be a potential spam
message, and has therefore been blocked. Please visit
http://coxagainstspam.cox.net for more information.', Port: 25,
Secure(SSL): No, Server Error: 552, Error Number: 0x800CCC6D

2. Your server has unexpectedly terminated the connection. Possible causes
for this include server problems, network problems, or a long period of
inactivity. Account: ', Server: '127.0.0.1',
Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0F