Quick Hit: Export-Mailbox Cmdlet in Exchange 2007

Posted on September 8, 2009

Ever needed to export the contents of an entire mailbox (or mailboxes)?  The Export-Mailbox cmdlet that is available via the Exchange 2007 PowerShell console can export each mailbox to a PST file.  In addition, Import-Mailbox can be used to import the contents of a PST back into an existing Exchange 2007 mailbox.


Export-Mailbox –Identity <mailbox alias> –PSTFolderPath <path to PST file>

There are a number of additional parameters available to filter the contents and tweet the configuration of what exactly is exported.  Using Export-Mailbox can be very time-consuming. a 200 MB mailbox can take 20 minutes or more (or did so in my tests).

A few things to remember when using Export-Mailbox:

  1. The account running the cmdlet must have full permissions to the mailbox in order for the export to complete successfully.

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  2. The export will export all mail contents including the contents of the dumpster for that mailbox.
  3. Export-Mailbox requires that Outlook 2003 SP2 or later is installed on the machine from which the command is executed. 
  4. Export-Mailbox can only be run using the 32-bit version of the management tools.  This means that you have will have to load the 32-bit management tools on a workstation, since production environments of Exchange 2007 run in 64-bit environments.

This is a perfect alternative to what required ExMerge in the past.

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