Exchange 2003 unauthorized mailbox access

Hello

Trying to track unauthorized mailbox access in a Exchange 2003 enviroment by a wayward admin.  

Normally I would up the diagnostic logging to look for event id 1016 however if you look at someone's calendar in outlook it also logs this same event.  How do you differentiate unauthorized mailbox access from a calendar read?

thanks
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Eric-arupAsked:
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Hilal1924Commented:
Native Auditing is very limited in Exchange  2003. Even if you turn on Diagonostic logging for Logons and Access Control in Exchange 2003, you will see lot of 1016, 1013, 1009 etc event ids which may or may not be malicious in intent. You should consider using a third party utility such as Netwrix, ManageEngine etc which give you much more flexibility.

Peace,
Hilal
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Eric-arupAuthor Commented:
Are any of these free?  Solving the problem in the short term would have to be a free solution.  Budgets move SLOW around here.

e-
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Hilal1924Commented:
Unfortunately No. But ManageEngine will give you 30 days trial with full feature set.

http://www.manageengine.com/products/exchange-reports/index.html

This is a great Tool :)

Peace,
Hilal
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Hilal1924Commented:
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firemanf29Commented:
This has been addresses before on EE:

See: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_22747857.html

"Because of the severity of the implications, we felt it necessary to place a call with Microsoft for validation since any documentation on this is not very clear in my opinion.  Event ID 1016, 1013 and 1009 DO NOT necessarily mean a user with Exchange Admin rights did in fact open another users mailbox.  It could simply mean a  meeting request in the calendar (I did a test and validated this).  So really, what is the point of logging these events, not to mention how misleading they are??  There is no way to audit and solidly determine if an admin is abusing his/her power.  This is a big shortcoming if you ask me."

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