Unsolved Mail Issue? Or too hard?

[Peter Scott]

On Windows XP Professional with Outlook 2002 SP2, I was getting the
0x8004210B error when sending or forwarding mail with attachments. Since I
had come across this before - I tried following the same procedures as I
have used previously to overcome this problem but had no success.

This was a brand new system fully patched (Windows and Office updates
applied) and
Trend Micro Internet Security 2004 as the Anti-Virus.

0x8004210B Mail get's stuck in Outbox when sending or forwarding messages
with
attachments.

The customer uses a dialup account to Telstra Bigpond.

I also followed the workaround in the articles below - but no success:

http://support.microsoft.com/default.aspx?scid=kb;en-us;329923&Product=ol2002
http://support.microsoft.com/default.aspx?scid=kb;en-us;823663&Product=ol2002
http://support.microsoft.com/default.aspx?scid=kb;en-us;827349&Product=ol2002
http://support.microsoft.com/default.aspx?scid=kb;en-us;315049&Product=ol2002
http://support.microsoft.com/default.aspx?scid=kb;en-us;836562&Product=ol2002

After this, I Installed Service Pack 3 for OfficeXP (which was suppose to
rectify the
problem) but didnt fix it.

After deleting the mail account and recreating it - I still was receiving
this error and experiencing the same problem.

I created the DWORD entry in the registry - still didnt work.

I removed Trend Micro Internet Security 2004 - restarted - deleted and
recreated mail
account - problem still occured!

So then we upgraded to Office 2003 - updated through Office Update - but the
problem still exists!

Using Outlook 2003 - I tried this article : but no luck
http://support.microsoft.com/default.aspx?scid=kb;en-us;315049&Product=off2003

I don't know what else to do - Peter Scott