When I send from my two computers running Windows 7 - one 32 bit one 64, 
If I have a very large text message or an attachment of any size (even a 
screen shot) the outgoing email message will stall.  My old desktop 
computer running XP does not have this problem.

Any ideas?  Thanks in advance
Richard

On 6/7/2010 2:50 PM, Richard John wrote:
> very large text message or an attachment of any size (even a screen
> shot) the outgoing email message will stall

It sounds like something's timing out. Do you have Thunderbird 
installed? If so you might give this a try:

http://support.ecenica.com/email/troubleshooting-email/how-to-fix-connection-to-server-timeout-error-in-thunderbird/

Richard John wrote:
> When I send from my two computers running Windows 7 - one 32 bit one 64,
> If I have a very large text message or an attachment of any size (even a
> screen shot) the outgoing email message will stall.  My old desktop
> computer running XP does not have this problem.
>
> Any ideas?

Posting your question in the appropriate Win7-specific forum?
http://social.answers.microsoft.com/Forums/en-US/category/windows7

Stating the Mail Client you're using and if the installed anti-virus 
application is configured to scan outgoing & incoming mail? 

On 07/06/2010 6:26 PM, PA Bear [MS MVP] wrote:
> Richard John wrote:
>> When I send from my two computers running Windows 7 - one 32 bit one 64,
>> If I have a very large text message or an attachment of any size (even a
>> screen shot) the outgoing email message will stall. My old desktop
>> computer running XP does not have this problem.
>>
>> Any ideas?
>
> Posting your question in the appropriate Win7-specific forum?
> http://social.answers.microsoft.com/Forums/en-US/category/windows7
>
> Stating the Mail Client you're using and if the installed anti-virus
> application is configured to scan outgoing & incoming mail?
I don't see windows 7 in the list of mail clients

On 07/06/2010 6:10 PM, Mike S wrote:
> On 6/7/2010 2:50 PM, Richard John wrote:
>> very large text message or an attachment of any size (even a screen
>> shot) the outgoing email message will stall
>
> It sounds like something's timing out. Do you have Thunderbird
> installed? If so you might give this a try:
>
> http://support.ecenica.com/email/troubleshooting-email/how-to-fix-connection-to-server-timeout-error-in-thunderbird/
>
There is no timeout option with Version 3 which I am using.

Richard John wrote:
>>> When I send from my two computers running Windows 7 - one 32 bit one 64,
>>> If I have a very large text message or an attachment of any size (even a
>>> screen shot) the outgoing email message will stall. My old desktop
>>> computer running XP does not have this problem.
>>>
>>> Any ideas?
>>
>> Posting your question in the appropriate Win7-specific forum?
>> http://social.answers.microsoft.com/Forums/en-US/category/windows7
>>
>> Stating the Mail Client you're using and if the installed anti-virus
>> application is configured to scan outgoing & incoming mail?
>
> I don't see windows 7 in the list of mail clients

Huh?

Are you accessing your mail in MS Outlook, Windows Live Mail, Thunderbird, 
or...?

Networking, MAIL, and Getting Online forum
http://social.answers.microsoft.com/Forums/en-US/w7network/threads

Internet Explorer forum
http://social.answers.microsoft.com/Forums/en-US/InternetExplorer/threads

Richard John wrote:
> When I send from my two computers running Windows 7 - one 32 bit one
> 64, If I have a very large text message or an attachment of any size
> (even a screen shot) the outgoing email message will stall.  My old
> desktop computer running XP does not have this problem.
>
> Any ideas?  Thanks in advance

Try the mozilla.support.thunderbird newsgroup.

Or the Web forum:

http://forums.mozillazine.org/viewforum.php?f=39 

Richard John wrote:

> When I send from my two computers running Windows 7 - one 32 bit one 64, 
> If I have a very large text message or an attachment of any size (even a 
> screen shot) the outgoing email message will stall.  My old desktop 
> computer running XP does not have this problem.

Windows 7 doesn't come with an e-mail client.  Nope, not one e-mail
program.  You have to install one.  Are to guess that your *e-mail*
client is the same program used as your *newsreader* client?

Did you yet find out what is the anti-abuse quotas at whomever is your
UNIDENTIFIED e-mail provider regarding the maximum size you can send for
an e-mail?  The size of the original file that you attach is irrelevant.
All e-mail, and I mean all of it, gets sent as plain text.  HTML is
text.  RTF is text with a .dat attachment.  Attachments are encoded into
long text strings in MIME sections within the body of your message.
It's all text.  That encoding into text of an attachment will bloat the
size of the attached content by 137%, or far more.  Save a draft of your
e-mail and then look in the Drafts folder under the Size column to see
what will be the actual size of your e-mail when you send it.  Then
consider if it is under the max-size-per-message anti-abuse quota at
your unidentified e-mail provider.

On 07/06/2010 6:26 PM, PA Bear [MS MVP] wrote:
> Richard John wrote:
>> When I send from my two computers running Windows 7 - one 32 bit one 64,
>> If I have a very large text message or an attachment of any size (even a
>> screen shot) the outgoing email message will stall. My old desktop
>> computer running XP does not have this problem.
>>
>> Any ideas?
>
> Posting your question in the appropriate Win7-specific forum?
> http://social.answers.microsoft.com/Forums/en-US/category/windows7
>
> Stating the Mail Client you're using and if the installed anti-virus
> application is configured to scan outgoing & incoming mail?
Using Mozilla Thunderbird and Microsoft Security Essentials but same 
problem with Essentials turned off

On 07/06/2010 7:57 PM, PA Bear [MS MVP] wrote:
> Richard John wrote:
>>>> When I send from my two computers running Windows 7 - one 32 bit one
>>>> 64,
>>>> If I have a very large text message or an attachment of any size
>>>> (even a
>>>> screen shot) the outgoing email message will stall. My old desktop
>>>> computer running XP does not have this problem.
>>>>
>>>> Any ideas?
>>>
>>> Posting your question in the appropriate Win7-specific forum?
>>> http://social.answers.microsoft.com/Forums/en-US/category/windows7
>>>
>>> Stating the Mail Client you're using and if the installed anti-virus
>>> application is configured to scan outgoing & incoming mail?
>>
>> I don't see windows 7 in the list of mail clients
>
> Huh?
>
> Are you accessing your mail in MS Outlook, Windows Live Mail,
> Thunderbird, or...?
>
> Networking, MAIL, and Getting Online forum
> http://social.answers.microsoft.com/Forums/en-US/w7network/threads
>
> Internet Explorer forum
> http://social.answers.microsoft.com/Forums/en-US/InternetExplorer/threads
>
Using Thunderbird

On 07/06/2010 8:31 PM, Daave wrote:
> Richard John wrote:
>> When I send from my two computers running Windows 7 - one 32 bit one
>> 64, If I have a very large text message or an attachment of any size
>> (even a screen shot) the outgoing email message will stall.  My old
>> desktop computer running XP does not have this problem.
>>
>> Any ideas?  Thanks in advance
>
> Try the mozilla.support.thunderbird newsgroup.
>
> Or the Web forum:
>
> http://forums.mozillazine.org/viewforum.php?f=39
>
>
Been there - no help from them

Richard John wrote:
> On 07/06/2010 8:31 PM, Daave wrote:
>> Richard John wrote:
>>> When I send from my two computers running Windows 7 - one 32 bit one
>>> 64, If I have a very large text message or an attachment of any size
>>> (even a screen shot) the outgoing email message will stall.  My old
>>> desktop computer running XP does not have this problem.
>>>
>>> Any ideas?  Thanks in advance
>>
>> Try the mozilla.support.thunderbird newsgroup.
>>
>> Or the Web forum:
>>
>> http://forums.mozillazine.org/viewforum.php?f=39
>>
>>
> Been there - no help from them

Been where? I suggested two different places.

You can try another e-mail client to determine if the issue is the 
client (or its associated settings or how it interacts with Windows 7) 
or the ISP.

You could always post to the Windows 7 Web forum PA Bear mentioned if 
you believe this has something to do with the OS. 

Richard John wrote:
>>> When I send from my two computers running Windows 7 - one 32 bit one 64,
>>> If I have a very large text message or an attachment of any size (even a
>>> screen shot) the outgoing email message will stall. My old desktop
>>> computer running XP does not have this problem.
>>>
>>> Any ideas?
>>
>> Posting your question in the appropriate Win7-specific forum?
>> http://social.answers.microsoft.com/Forums/en-US/category/windows7
>>
>> Stating the Mail Client you're using and if the installed anti-virus
>> application is configured to scan outgoing & incoming mail?
>
> Using Mozilla Thunderbird and Microsoft Security Essentials but same
> problem with Essentials turned off

Microsoft Security Essentials (MSE) doesn't include email scanning /per se/.

Did you upgrade to Win7 or are they both new computers?

When (approx. date) did you install MSE and was the computer fully-patched 
at Windows Update at the time?

What anti-virus application was installed before you installed MSE, was your 
subscription still current, and did you uninstall it before you installed 
MSE?

Has a(another) Norton or McAfee application ever been installed on the 
computer (e.g., a free-trial version that came preinstalled when you bought 
it)?

Not very much useful information from OP that wasn't obtained like
pulling teeth.
I run the latest version of Thunderbird on 3 different laptops, 1-32
bit Windows Home Edition and 2-64 bit Windows 7 Home Premium,
If outgoing e-mails time out it is very likely it exceeded the time
limits set by your ISP and it is they rather than your machine. OS
version or e-mail client that is fault. Suspect a poor internet
connection.
Your ISP retains the same time constraints regardless of whether or
not the ISP is delivering fully at their "up to "X" Mbs upload speed".
So if your ISP is running slower than usual, e-mails can "time out." I
happen to have that kind of ISP(Clearwire) so I am used to this
happing from time to time on any of my machines and OS's.

I hardly think this has anything to do with which OS one is using.
XP took a long time to become about as good as it will ever be
getting.
Windows 7 is a major improvement over XP and Vista but I am very glad
the need for any new computers did not come up until Vista was canned.
XP is fine, I have no complaints. But it really is getting rather long
in the tooth.
New hardware has made XP more and more anachronistic, New OS versions
are best exploited with new hardware.
Maybe the learning curve is steeper than some care to deal with making
a transition from XP to Windows 7 but I had to learn quite a bit about
Windows 7 pretty fast when my XP machine was in a shop for repairs for
almost a month. I now use Win 7 for everything including accessing the
XP machine on my network.

On 07/06/2010 5:50 PM, Richard John wrote:
> When I send from my two computers running Windows 7 - one 32 bit one 64,
> If I have a very large text message or an attachment of any size (even a
> screen shot) the outgoing email message will stall. My old desktop
> computer running XP does not have this problem.
>
> Any ideas? Thanks in advance
> Richard
My Internet provider found the problem and I will quote his response below.

""I found the issue with TB 3.0. Thunderbird defaults the outgoing mail 
server port to like 573. Probably so it can cache some info on disk. 
Once I changed that port to 25 it works fine.


To change it click on Tools and then accounts. Select the Outgoing 
Server(SMTP) option on the left side pane. Select your account and click 
on edit. Change the port number to 25.""

This is an odd quirk with Win 7 and Thunderbird 3 as a combination.
Richard

Richard John wrote:
> On 07/06/2010 5:50 PM, Richard John wrote:
>> When I send from my two computers running Windows 7 - one 32 bit one
>> 64, If I have a very large text message or an attachment of any size
>> (even a screen shot) the outgoing email message will stall. My old
>> desktop computer running XP does not have this problem.
>>
>> Any ideas? Thanks in advance
>> Richard
> My Internet provider found the problem and I will quote his response
> below.
> ""I found the issue with TB 3.0. Thunderbird defaults the outgoing
> mail server port to like 573. Probably so it can cache some info on
> disk. Once I changed that port to 25 it works fine.
>
>
> To change it click on Tools and then accounts. Select the Outgoing
> Server(SMTP) option on the left side pane. Select your account and
> click on edit. Change the port number to 25.""
>
> This is an odd quirk with Win 7 and Thunderbird 3 as a combination.

Thanks for letting us and others know. Was Thunderbird's SMTP port 25 on 
the XP rig all along? (Or was it a different version of Thunderbird? 
Maybe Windows 7 is a red herring.) 

Richard John wrote:

> On 07/06/2010 5:50 PM, Richard John wrote:
>> When I send from my two computers running Windows 7 - one 32 bit one 64,
>> If I have a very large text message or an attachment of any size (even a
>> screen shot) the outgoing email message will stall. My old desktop
>> computer running XP does not have this problem.
>>
>> Any ideas? Thanks in advance
>> Richard
> My Internet provider found the problem and I will quote his response below.
> 
> ""I found the issue with TB 3.0. Thunderbird defaults the outgoing mail 
> server port to like 573. Probably so it can cache some info on disk. 
> Once I changed that port to 25 it works fine.
> 
> To change it click on Tools and then accounts. Select the Outgoing 
> Server(SMTP) option on the left side pane. Select your account and click 
> on edit. Change the port number to 25.""
> 
> This is an odd quirk with Win 7 and Thunderbird 3 as a combination.
> Richard

The install of TB3 does not use a default port of 573.  It uses port 25
as the default when you define an email account.  If port doesn't work,
you should next try port 587 (the port that e-mail clients are supposed
to use per RFC 2476).

RFC 2476 was ratified way back in December 1998 to correct an error in
port assignments.  Port 25 was only supposed to get used between MTAs
(mail transfer agents; i.e., SMTP mail servers).  It was not supposed to
get used by MUAs (mail user agents; i.e., e-mail clients).  This RFC
stated that port 587 was supposed to get used by MUAs.  However, ISPs
and e-mail providers didn't start complying until around 4 years later
and many still don't comply.  As such, e-mail clients still default to
using port 25 when you define an e-mail account within them.  Some
e-mail clients, like TB3, will attempt a test connect to the mail server
to determine on which port(s) it listens and offer to use that port, but
port 25 is still usually the default one used by e-mail clients.

That the e-mail account defined in TB3 was using port 573 means you
installed something else that modified your e-mail account's parameters.
Maybe you installed an extension, like some webmail proxy, and it
listens on port 573 (so your e-mail client has to use that port to
connect to that proxy) while the proxy uses 25 or 537 to connect to the
actual mail server.  Maybe you installed anti-virus software whose proxy
listens on port 573 and it modified your e-mail account's settings.