Exchange 2010 mailbox corrupt after Outlook closed abruptly.

I have a machine that had Outlook open and Outlook just shut down, lot of codes on the outlook.exe in EventViewer. The user had MANY folders under the Inbox with Rules directing mail to each. After Outlook crash, EVERYTHING under the Inbox folders is gone, in Outlook and OWA. Properties still shows the .OST file at 42GB. I exported it to a .PST file which completed at 21GB, not sure why. I moved the mailbox to another store and had it not move corrupt content.

AggregateCount should corrupt before moving mailbox but now no.

Any ideas how I can get this back? Our last full backup was 7/13, didn't really want to go back that far if possible.
HaroldNetwork EngineerAsked:
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Scott CSenior EngineerCommented:
At this point, I think your backup is your only option.  If the information isn't showing under OWA and you have retrieved everything you can out of the .OST, there really isn't any other place data is kept.

BTW...the OST doesn't shrink automatically.  When items re removed the white space is left behind.  If you want to reduce the size of an .OST you need to exit out of Outlook, delete it and let it recreate.

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First, use scanpst.exe to repair the file and make sure that there are no errors.

Repair Outlook Data Files (.pst and .ost):
Will SzymkowskiSenior Solution ArchitectCommented:
I have mentioned this software before Exchange Recovery by Kernel Data Recovery  but it is great for scanning the EDB database offline and correcting any database issues. From there you can then export the mailbox to a PST to see if it shows all of your data.

Exchange Recovery by Kernel Data Recovery

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