Triple check everything here. Even an errant dot can cause problems.

Change the SMTP port to 587 and make sure: My Server Requires
Authentication is checked.



How do I set up/configure Outlook Express, Windows Mail & Windows Live
Mail for Comcast email?
http://www.comcast.com/customers/faq...s.ashx?Id=2288

It may also be e-mail scanning causing this. "a long period of inactivity"
is a giveaway.

Turn off e-mail scanning in your anti-virus program. It is a redundant
layer of protection that eats up CPUs, slows down sending and receiving,
and causes a multitude of problems such as time-outs, account setting
changes and has even been responsible for loss of messages. Your
up-to-date A/V program will continue to protect you sufficiently. For
more, see:
http://www.oehelp.com/OETips.aspx#3

Why you don't need your anti-virus to scan your email
http://thundercloud.net/infoave/tuto...ning/index.htm

Note that for some AV programs, it may be necessary to uninstall the
program and reinstall in Custom Mode and uncheck e-mail scanning when the
option arises.
--
Bruce Hagen
MS-MVP [Mail]
Imperial Beach, CA


"Michael" <Michael@newsgroup> wrote in message
news:CBB95699-232B-47E4-B898-0A95384E6114@newsgroup

> Hello,
>
> I recently converted from using the standard webmail email platforms to
> windows mail. After countless hours of updating contacts, filing, and
> restless typing I proceed to construct my first email. Only to the
> suprise it
> cannot send it!
>
> My error message is as follows:
>
> Your server has unexpectedly terminated the connection. Possible causes
> for
> this include server problems, network problems, or a long period of
> inactivity. Subject 'Fw: Thank you again from Peyton Trent', Account:
> 'mail.comcast.net', Server: 'mail.comcast.net', Protocol: SMTP, Port:
> 25,
> Secure(SSL): No, Error Number: 0x800CCC0F
>
> I have tried putting my outgoing port to 587 and outgoing to 995. This
> however did not work. So I tried to use settings that ensure
> authentication
> of the server, and still no success. So I'm now resorting to this,
> please
> help.
>
> -Kind Regards
>
> -Michael
>
> P.S-- I've also recently had similar issues with the email platform on
> my
> iPhone... But we wont disucc that here. Ha-ha?

Change the outgoing server name to smtp.comcast.net and the port
to 587. Also "My server requires authentication" must be checked.

If the problem continues, read on:
The error "unexpectedly terminated" is usually caused by interference
from an antivirus program. Which antivirus are you running?
As a minimum, email scanning in the antivirus should 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 should be disabled, for reasons
explained here:
http://thundercloud.net/infoave/tuto...ning/index.htm

As a possible temporary fix, delete that corrupted mail account,
restart Windows Mail, then recreate the account.

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, Microsoft MVP (Mail)
Microsoft MVP Program: http://mvp.support.microsoft.com


"Michael" <Michael@newsgroup> wrote in message news:CBB95699-232B-47E4-B898-0A95384E6114@newsgroup

> Hello,
>
> I recently converted from using the standard webmail email platforms to
> windows mail. After countless hours of updating contacts, filing, and
> restless typing I proceed to construct my first email. Only to the suprise it
> cannot send it!
>
> My error message is as follows:
>
> Your server has unexpectedly terminated the connection. Possible causes for
> this include server problems, network problems, or a long period of
> inactivity. Subject 'Fw: Thank you again from Peyton Trent', Account:
> 'mail.comcast.net', Server: 'mail.comcast.net', Protocol: SMTP, Port: 25,
> Secure(SSL): No, Error Number: 0x800CCC0F
>
> I have tried putting my outgoing port to 587 and outgoing to 995. This
> however did not work. So I tried to use settings that ensure authentication
> of the server, and still no success. So I'm now resorting to this, please
> help.
>
> -Kind Regards
>
> -Michael
>
> P.S-- I've also recently had similar issues with the email platform on my
> iPhone... But we wont disucc that here. Ha-ha?

"Gary VanderMolen [MVP]" wrote:

> Change the outgoing server name to smtp.comcast.net and the port
> to 587. Also "My server requires authentication" must be checked.
>
> If the problem continues, read on:
> The error "unexpectedly terminated" is usually caused by interference
> from an antivirus program. Which antivirus are you running?
> As a minimum, email scanning in the antivirus should 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 should be disabled, for reasons
> explained here:
> http://thundercloud.net/infoave/tuto...ning/index.htm
>
> As a possible temporary fix, delete that corrupted mail account,
> restart Windows Mail, then recreate the account.
>
> 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, Microsoft MVP (Mail)
> Microsoft MVP Program: http://mvp.support.microsoft.com
>
>
> "Michael" <Michael@newsgroup> wrote in message news:CBB95699-232B-47E4-B898-0A95384E6114@newsgroup

> > Hello,
> >
> > I recently converted from using the standard webmail email platforms to
> > windows mail. After countless hours of updating contacts, filing, and
> > restless typing I proceed to construct my first email. Only to the suprise it
> > cannot send it!
> >
> > My error message is as follows:
> >
> > Your server has unexpectedly terminated the connection. Possible causes for
> > this include server problems, network problems, or a long period of
> > inactivity. Subject 'Fw: Thank you again from Peyton Trent', Account:
> > 'mail.comcast.net', Server: 'mail.comcast.net', Protocol: SMTP, Port: 25,
> > Secure(SSL): No, Error Number: 0x800CCC0F
> >
> > I have tried putting my outgoing port to 587 and outgoing to 995. This
> > however did not work. So I tried to use settings that ensure authentication
> > of the server, and still no success. So I'm now resorting to this, please
> > help.
> >
> > -Kind Regards
> >
> > -Michael
> >
> > P.S-- I've also recently had similar issues with the email platform on my
> > iPhone... But we wont disucc that here. Ha-ha?

> .
> Michael-

I had that problem and they also said to turn off email scanning or
uninstall the anitvirus software...I didn't do either...I got rid off the
error miessage by downloading and installing the newest version of Norton
360, which is version 4.. It will get rid of the error message...ok...they
also got mad because I wasn't responding to there suggestions..that is
because nothing Bruce or Gary said worked..

Alaska Girl, mark my words, your problem will return. Windows Mail
is not very compatible with Norton antivirus software.

--
Gary VanderMolen, Microsoft MVP (Mail)
Microsoft MVP Program: http://mvp.support.microsoft.com


"alaska girl" <alaskagirl@newsgroup> wrote in message news:21F9F345-8845-4021-B438-CF740455A18F@newsgroup

>
>
> "Gary VanderMolen [MVP]" wrote:
>

>> Change the outgoing server name to smtp.comcast.net and the port
>> to 587. Also "My server requires authentication" must be checked.
>>
>> If the problem continues, read on:
>> The error "unexpectedly terminated" is usually caused by interference
>> from an antivirus program. Which antivirus are you running?
>> As a minimum, email scanning in the antivirus should 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 should be disabled, for reasons
>> explained here:
>> http://thundercloud.net/infoave/tuto...ning/index.htm
>>
>> As a possible temporary fix, delete that corrupted mail account,
>> restart Windows Mail, then recreate the account.
>>
>> 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, Microsoft MVP (Mail)
>> Microsoft MVP Program: http://mvp.support.microsoft.com
>>
>>
>> "Michael" <Michael@newsgroup> wrote in message news:CBB95699-232B-47E4-B898-0A95384E6114@newsgroup

>> > Hello,
>> >
>> > I recently converted from using the standard webmail email platforms to
>> > windows mail. After countless hours of updating contacts, filing, and
>> > restless typing I proceed to construct my first email. Only to the suprise it
>> > cannot send it!
>> >
>> > My error message is as follows:
>> >
>> > Your server has unexpectedly terminated the connection. Possible causes for
>> > this include server problems, network problems, or a long period of
>> > inactivity. Subject 'Fw: Thank you again from Peyton Trent', Account:
>> > 'mail.comcast.net', Server: 'mail.comcast.net', Protocol: SMTP, Port: 25,
>> > Secure(SSL): No, Error Number: 0x800CCC0F
>> >
>> > I have tried putting my outgoing port to 587 and outgoing to 995. This
>> > however did not work. So I tried to use settings that ensure authentication
>> > of the server, and still no success. So I'm now resorting to this, please
>> > help.
>> >
>> > -Kind Regards
>> >
>> > -Michael
>> >
>> > P.S-- I've also recently had similar issues with the email platform on my
>> > iPhone... But we wont disucc that here. Ha-ha?

>> .
>> Michael-

>
> I had that problem and they also said to turn off email scanning or
> uninstall the anitvirus software...I didn't do either...I got rid off the
> error miessage by downloading and installing the newest version of Norton
> 360, which is version 4.. It will get rid of the error message...ok...they
> also got mad because I wasn't responding to there suggestions..that is
> because nothing Bruce or Gary said worked..