Microsoft Announces New Support Policy for Repaired Exchange Databases

On May 1, 2015 Microsoft announced a new support policy for repaired Exchange databases. The details are in this blog post from the Exchange team.
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Simply put — if the Exchange database has previously been repaired (repair count greater zero), then the contents of that database needs to be moved to a new Exchange database.

The question will be asked: how can I determine the repair count of an Exchange database?

The suggested way is to use the ESEUTIL utility with the MH option:
eseutil /mh <exchange_mailbox_filename.edb>

Running this command does not modify or update Exchange. It simply displays information about the Exchange database. But be sure to dismount your Exchange database before running the command.

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Finally, for the record books: back in August, 2006 I wrote a blog post titled: Defragging Exchange in 4 Easy Steps. This was written in the Exchange 2003 era.

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