User recieves duplicate meeting requests/invitations

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Brandon Carder - 17 May 2008 13:09 GMT

User A has Outlook 2007 in an Exchange 2003 SP2 environment. When User B
sends a meeting request to User A, User A gets duplicate (2) meeting
requests. User A is not a delegate of User B but does have full mailbox
access.

Even when Administrator sends a meeting request to User A, a duplicate
meeting request appears in the inbox. If User A sends a meeting request to
User B, User B does not receive duplicates.

Again, no delegates here. No matter what I try, it still happens. Rebooted
the Exchange server, restarted the domain controller, User A's machine, no
difference. It even happens in OWA.

I can't seem to figure this one out. I have verified User A does not have a
mobile device. Just straight up Outlook 2007 (and sometimes User A uses OWA
when out of the office).

Anyone know of what could be causing this?

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Diane Poremsky {MVP} - 18 May 2008 01:08 GMT

Have you checked for rules?

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> User A has Outlook 2007 in an Exchange 2003 SP2 environment. When User B
> sends a meeting request to User A, User A gets duplicate (2) meeting
[quoted text clipped - 16 lines]
>
> Anyone know of what could be causing this?

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Brandon Carder - 18 May 2008 02:07 GMT

There are no rules configured for this user.

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Brandon Carder - 18 May 2008 03:17 GMT

This fixed it!

http://support.microsoft.com/kb/253557

I had to log onto the user's workstation. I ran the MDBVu32 utility to
remove a "schedule +" component. Somehow, along the way, the user was a
delegate of themselves. I noticed it after following this article:

http://hellomate.typepad.com/exchange/2004/09/listing_which_e.html

and the user was a delegate of themselves. I removed the "send on behalf"
permissions in Active Directory but the issue still was experienced. The
above KB article fixed it! YAY!

> There are no rules configured for this user.

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