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Corrupt Exchange data store. What happens if...

I have a corrupt datastore that does not appear that it is going to be recoverable...No need going into detail there...We will get right to my question....

Fairly small 15 or so computers.   All there computers have cached mail and they can still pull up outlook and see it.  If i make a new datastore and mailboxes for all those users will that mail move back to the server or will the server tell the clients there is no mail in there mailbox and make the client computer wipe its mail?

This is server 2008 x64
Exchange 2007
Outlook 2007
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tsukraw
Asked:
tsukraw
2 Solutions
 
tastasI.T.Commented:
I had not had an Exchange Server Corrupted before.  However, I highly recommend you have all the users create an PST and backup their emails/calendar into it.

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tsukrawAuthor Commented:
I am most likely going to export to a PST first.  But i was wondering if anyone can verify if that data will go back to a blank datastore automatically.  One of my co-workers says yes it will but i need someone else to verify this...
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MadjaxCommented:
The cached file (OST) ist just a copy of the mailbox on the server. New mailbox will mean it will probably go blank so save data to PST first if possible.

If you only have the OST-file there are utilities that can convert OST to PST (see http://www.datanumen.com/aexr/)

/MadJax
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MegaNuk3Commented:
No, the data will not synch back. The OST knows it is not paired with the new blank mailbox so won't synch. Outlook will just prompt you to say exchange is in disaster recovery mode and you need to choose to work Online (blank mailbox) or offline (full OST) but no mail flow.
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Neil RussellTechnical Development LeadCommented:
As suguested already. Convert OST to PST. Set up new database and connect all clients, Import PST file once sync with exchange has occured for each client.
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MegaNuk3Commented:
Or simply open outlook in offline mode. File--> import/export -->export to PST

Create new blank exchange DB (rename the old files and exchange will create a new blank DB when you mount the store)

Close Outlook & Rename the OST on the outlook client so it will create a new one and connect to Exchange without prompting when it starts.

Import PST
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