I don't know what else to do. I can't seem to get any info from Microsoft or
searching the web, and I haven't got any help from any newsgroups (perhaps a
rare issue)?

Anyhow. I had problems sending an email with 5 - 10K email addresses using
Outlook 2000. So I decided after much troubleshooting, that I would upgraded
to the Outlook 2003 version our company had a license for.

It has issues too. It won't send an email with more than a few hundred
email contacts. I need to be able to send our subscribers a customer update
every once in-awhile.

Here's the info for the latest issue:

*Sending from my Windows 2003 Server station through an outgoing SMTP server.
*Error message: "Not enough memory to complete this operation".