You could try this - I haven't had a chance to test it but someone told me
it fixes the problem. I'm skeptical because apparently no one knows about
such a simple solution for a very annoying problem. If you do try it, let
me know if it solves the problem. (It is the fix when a user was removed as
a delegate but still gets copies of the meetings - they were properly
removed as a delegate though.)

Get mfcmapi (http://mfcmapi.codeplex.com/)
1. Open MFCMAPI.exe and logon to the store with the user’s account.
Do this from the user’s machine – nothing gets installed.
2. Go to Session, Logon and Display Store Table.
3. Right click on the mailbox and select Open Store from the context
menu.
4. Expand Root Container, Top of Information Store then right click on
Inbox and select Display Rules Table
5. Select the rule identified as Schedule+ EMS Interface. (Outlook
will rebuild this.)
6. Right click on the rule and select to delete.

If the user has other delegates, they will need to be added back, AFAIK.

--
Diane Poremsky [MVP - Outlook]
Outlook Tips: http://www.outlook-tips.net/
Outlook & Exchange Solutions Center: http://www.slipstick.com/

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"ATK Bill" wrote in message
...
From reading other posts, I understand that a problem is created when the
user account of a designated delegate is removed from Active Directory
prior
to being removed as the delegate from another user mailbox. The problem
occurs when a user who had delegated the left user sends out a meeting
notice. Recipients of the meeting request often receive return messages
from
the Exchange sys admin stating that the delegate mail account no longer
exists. Does anyone know of a tool or utility that would provide a
listing
of user accounts where another specified user is a defined delegate?
--
Bill