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Deleted Exchange Permissions

An assistant of mine deleted all administrative accounts in my exchange mailbox store by unchecking the allow inheritable permissions check box in advanced permissions.  The only account left is one with the following permissions.

Read
Execute
Read Permissions
Create Children
List contents
Read Properties
Administer Information Store
and all the rest below the Administer Information Store.

Needless to say my exchange is down.

Help me doesn't even come close if you know what I mean.

All help would be appreciated.
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dcsdave
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dcsdave
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1 Solution
 
TheCleanerCommented:
Restore from backup.  That's going to be the only real option.  You'll spend days if not weeks trying to work through EE, MS, etc. getting the original permissions correct.
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dcsdaveAuthor Commented:
Tried to restore the backup but I have to login as the only account that is left just to see the store.  Then the restore fails because it doesn't have rights to the store.
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TheCleanerCommented:
Well, I meant a full backup of the server, not just the Exchange portions.

I possible reinstall of Exchange on top of the existing install may set the permissions back correctly.

This is pretty brutal though...you may post a pointer question in the Exchange TA and see if Sembee or someone there has other ideas.
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dcsdaveAuthor Commented:
Thanks for your input.  Give me just a bit before I close the question and award points.
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dcsdaveAuthor Commented:
Spent 13 hours on it and got it figured out temporarily.  I will do a full backup of the server this weekend.  Ah the joys of IT.

I ended up creating a new first storage group and recreating the accounts.  The setting that ended up really saving my bacon was that I use Outlook on the client machines in cached Exchange mode.  This allowed me to export the PSTs in offline mode and import them after the new mailbox was setup.

Thanks for your help.

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TheCleanerCommented:
Good deal...sorry for the "blunt" answer, but I've seen other EE questions go on for days with an Exchange server down, and didn't want to give you false hopes that a quick answer would fix that severe of an issue.

My original thought was to create a temp Exchange server, move the mailboxes to it, and then reinstall Exchange and move them back...but I didn't want to suggest anything if you didn't have a good known backup.

I would then pummel your assistant...lol.
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