Exchange 2007 Restore Mailbox Data Deleting

Posted on 2013-05-10
Last Modified: 2015-03-25
Summary: Trying to restore an old Exchange 2007 Mailbox, the restore seems to work as I see data in Outlook however as soon as the restore is complete the data gets deleted.

Details: We have Exchange 2010 with all users moved over.  One user was missing some very old mail from our Exchange 2007 server.  I powered on the Exchange 2007 server, recreated the DB the users mail was in as it was no longer there and created a Restore User in a different existing DB on it.  Via Arcserve I restored the DB into a Recovery Group, mounted it and selected the user's mailbox to restore to the Restore user /restore folder. The restore starts OK and runs for 6+ hours (huge mailbox).  I can open Outlook of the Restore user and view the mail in the /Restore folder and was able to copy some to a .PST archive.  When the restore completes, the data starts deleting itself and within a few seconds GBs worth or recovered data is gone.  I've tried two different tapes from different times with the same results.
Any help would be greatly appreciated.
Question by:DigitalInfuzion
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Expert Comment

by:Carol Chisholm
ID: 39155279
I would guess that somewhere there is a POP account somewhere connecting to the mailbox - as the POP account downloads the mail it is deleted from the mailbox.
This is how POP works.
Why not disable POP and then it will not be able to download?

Author Comment

ID: 39156176
Thanks for the suggestion however it doesn't look like it's the issue.  My CAS server is offline and the setting for the mailbox is set to POP3 False.
I did some more tests with individual folders running Restore-Mailbox.  When the restore completes or if I Break out of PowerShell, the data gets deleted.  If during the restore I set Outlook to work offline, the data that has been restored to that point will stay.  When I set Outlook back to work online the data gets deleted.
LVL 16

Expert Comment

by:Carol Chisholm
ID: 39156241
So turn off the Exchange cache in Outlook before you start - looks like Outlook has registered an empty mailbox, more recently than the restored stuff!
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Author Comment

ID: 39156956
Actually when I originally ran into the problem, cache mode was off and I turned it on.  I have played around with some permissions to set delete to none and tried a few other things.  In any event the data seems to be staying now.

LVL 16

Expert Comment

by:Carol Chisholm
ID: 39157668
Glad to be of help. It's not a nice sort of thing to watch stuff vanish before you eyes.

Accepted Solution

DigitalInfuzion earned 0 total points
ID: 40679131
(overdue update) Ended up building an Exchange test environment and using Kernel for Exchange Server to restore data.

Author Closing Comment

ID: 40686643
final solution

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