"Unexpected" termination is usually caused by interference from a non-
compatible antivirus program. Which antivirus are you running?
As a minimum, email scanning in the antivirus must be turned off,
although that may not be sufficient to eliminate all bad effects.
In a worst case scenario, your antivirus may need to be uninstalled.
Email scanning in any antivirus must be disabled, for reasons
explained here:
http://thundercloud.net/infoave/tuto...ning/index.htm
If no improvement after disabling email scanning, consider upgrading
to Windows Live Mail, because it is less prone to suffering bad effects
from overly intrusive antivirus programs:
http://download.live.com/wlmail
--
Gary VanderMolen, MS-MVP (Mail)
"Mark" <(E-Mail Removed)> wrote in message news:67ED4726-5828-4EB2-894E-(E-Mail Removed)...
> This problem is happening on and off about every couple of weeks. My cable
> provider has done all their checks and they are saying it is VISTA.
>
> Can you help?
>
> here is the error message:
>
> Your server has unexpectedly terminated the connection. Possible causes for
> this include server problems, network problems, or a long period of
> inactivity. Subject 'Re: Ski trip', Account: 'mail.comast.net', Server:
> 'smtp.comcast.net', Protocol: SMTP, Port: 587, Secure(SSL): No, Error Number:
> 0x800CCC0F