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Exchange 2003 only administrators can access their mailboxes

Posted on 2010-09-11
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Last Modified: 2012-06-27
The Exchange server 2003 froze and crashed 2 days ago during an online database backup that was frozen. Users started complaining that they could not open their mailboxes. I restarted the domain controllers and the exchange server and then users could access their mailboxes again. Later that day, the server rebooted itself for no reason and the event log indicated "recovery complete". The problem for users came back - no one could open their mailbox except for administrators. I have tried creating a new user and mailbox and I have to add the user to the domain admins group or they cannot open the mailbox. I have mailbox logging and access control set to maximum. Nothing shows up unless you open the mailbox as an administrator and then an entry shows up in the event log. It seems the exchange server will not let regular users connect at all. Note - I had opened a question 2 days ago and prematurely thought my problem was solved, but it appears to be a bigger problem than I originally thought. Any ideas?
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Question by:kjroxby
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by:Whiterat
ID: 33654177
If you right click the information store, go to properties and security, what is in there currently?
(Admin Groups > Server > Storage Group > mailbox store)
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Expert Comment

by:admrbetts
ID: 33654300
when you say that noone can open the mailbox apart from domain admins, what does it say when you try to open one up as a normal user? what error message? Check the event logs of the server with the exchange server also for any mailbox related errors, also check the event logs of the authenticating server for any authentication problems.
screenshots would grand of any errors.
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Author Comment

by:kjroxby
ID: 33654333
I will check the security on the information store and get back to you. I found that if I add the domain users to the local administrator group on the exchange server, then the users can connect to their mailbox fine. if I remove the domain users from the local admin group on the exchange server, then they keep getting the logon screen when they launch Outlook. I have logging set to max on the exchange server, but not seeing authentication errors. only see the successful authentication entries. I cannot give you screen shots as this is in a closed area scif.
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Author Comment

by:kjroxby
ID: 33654413
FYI, the security tab on the mailbox store contains Administrator, Anonymous logon group, Everyone group, Server$ (where server equals the exchange server name), Enterprise Admins group, Domain Admins group, Exchange Domain Servers Group
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kjroxby earned 0 total points
ID: 33693485
We discovered the problem was DNS. we fixed it and now everything is working great.
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