Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition
by Jonas Andersson, Nuno Mota, Mike Pfeiffer
Detecting and fixing corrupt mailboxes
For years, Exchange administrators have used Information Store Integrity Checker, more commonly known as the ISInteg utility, to detect and repair mailbox database corruption. You may have used ISInteg in previous versions of Exchange to correct a corruption issue, preventing a user from opening their mailbox or from opening a particular message.
Unfortunately, in order to repair a mailbox with ISInteg, you have to dismount the database hosting the mailbox, taking it offline for everyone else that has a mailbox stored on that database. Obviously, taking an entire mailbox database down for maintenance when it is only affecting one user is less than ideal. In Exchange 2010 SP1, a new cmdlet called New-MailboxRepairRequest ...
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