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Strange, intermittant calendar problems with delegates and Outlook 2003

Posted on 2007-04-09
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Last Modified: 2009-02-10
We have been having some real problems with Exchange 2003 - specifically with four people being delegates for the CEO and working on his calendar.  Every once in a while, an appointment that someone swears they put on his calendar doesn't appear.  Today, a number of appointments that were created or changed on Friday of last week either disappeared or reverted to their pre-change condition.  

I know that this is a bit of a vague question, but I'd love some suggestions as to where I can check to make sure that everything is set up correctly, either in Outlook or on the Exchange server.

Running:
Exchange 2003 with all patches as of today installed
Windows Server 2003
About 40 users total in a single AD forest
Lots of mail transactions and calendar appointments - CEO usually has 15 or more appointments per day
Each admin is a delegate with access to the CEO's calendar, and they send out meeting invitations from their own outlook, using his calendar (so the e-mail says from A on behalf of B)
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Question by:beaugrc2007
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vangipe earned 500 total points
ID: 18881221
I've seen similar problems before. We tried several things:
- rerun forestprep and domainprep
- reinstall Ex2003 SP2
- run Outlook wit the -resetfreebusy option
- recreated Exchange mailboxes and AD user accounts
- contacted MS PSS

Try diagnostic logging on MSExchangeFB and others. In our case we decided to reinstall the entire Exchange server.

Hope this helps
Peter
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Author Comment

by:beaugrc2007
ID: 18883169
Wow, those sound like pretty dramatic 'solutions' - I was hoping for something a little less invasive.  Any other ideas?  Thanks.
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by:vangipe
ID: 18887869
I know, I didn't like it either but we didn't have any choice in our case. Start with diagnostic logging and do some research on the errors and warnings you get in the event log. Try www.eventid.net to look up what they mean exactly and what causes them.

You can contact MS PSS as well of course.

Peter
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by:PStrama
ID: 18898268
Had a similar problem where an offline defrag using eseutil /d solved my problem.
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by:Stevesdl
ID: 23606181
I am hoping that the orignator (beaugrc2007:) of this posted issue will respond back with a final solution that he actually applied to resolve his issue. I have same issue.

Thank you
Member Name: Stevesdl


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Author Comment

by:beaugrc2007
ID: 23606373
I contacted Microsoft Professional support, who suggested that I remove a few people's access to the calendar (5 people had read/write access to the calendar).  They also helped me enable logging of all activity on his calendar.  We also changed how his delegates worked with respect to receiving calendar invites.

From then on, any 'wierdness' on the calendar could be traced, and people started 'remembering' that they had in fact made changes.  Over the course of about 2 months, the problems disappeared.

So, the eventual cause was pretty much human error.
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