Outlook 2003 tries to authenticate to wrong Exchange Server -STRANGE!

A

Aaron Butler

I have what I consider to be a very strange problem:

-My Outlook 2003 client is set up to connect to my mailbox on the
Exchange Server which sits in the same domain as my client
workstation.

-We have another Exchange Server in the same Exchange organization,
but in a separate Administrative Group in Exchange, and in a separate
Windows domain, and separate Active Directory Site.

PROBLEM: When I start Outlook, it will connect to the correct Exchange
server, and begin downloading new mail. It runs fine (I can send and
receive from the Exchange Server) until about 30 seconds pass, and
then I get prompted to authenticate to the Exchange Server in the
other domain/Administrative Group/Site - the one which my mailbox does
NOT sit on. If I put in credentials which have access to that other
mail server, it tries for a few seconds, then prompts me again. If I
click Cancel, Outlook disconnects from my Exchange Server all
together. If I move the prompt aside and ignore it, Outlook still
shows it's "Connected" in the bottom right, but no new mail will
download, nor can I send.

Troubleshooting steps I've taken:
-I've verified there is nothing odd in my Hosts or LMHosts files.
-I've created a new profile in Outlook connecting to the same mailbox
- same problem
-I can connect and use OWA fine.
-I've moved the mailbox to another mail store on the same local
Exchange server.
-I've looked over all setting on my AD account related to Exchange and
they look normal.

Other information:
I'm the primary Exchange admin here, and thus have more rights to the
Exchange Server than anyone else. I'm also the only one I know of who
is having the problem.

The link to the internet at the remote location was down for several
days this week - making that other site, Exchange Server, etc.
unreachable. During that time, Outlook worked fine. The link came
back up, and now I'm having the same problem again.

HELP!
 

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