Move Mailboxes from Exchange 2010 Servers to Exchange 2007 Servers
Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2
Topic Last Modified: 2012-02-28
Moving mailboxes from Microsoft Exchange Server 2010 to Exchange Server 2007? Consider the following:
The move process is performed offline, and end-users won't be able to access their mailboxes during the move.
You can't move mailboxes to or from servers running Exchange 2007 Service Pack 1 (SP1) or earlier. The target database must be on a server running Exchange 2007 SP3.
Perform the move from an Exchange 2010 server by using the move request cmdlets in the Exchange Management Shell. You can't use the Move-Mailbox cmdlets in Exchange 2007 to move the mailboxes.
If the mailbox that you're moving has an archive mailbox associated with it, you must disable the archive before moving the mailbox.
If you’re moving a mailbox to Exchange 2007, you must disable single-item recovery and purge the Recoverable Items folder. For details, see Clean Up the Recoverable Items Folder.
For detailed instructions about how to move mailboxes, see Managing Move Requests.
To learn more about moving mailboxes, see Understanding Move Requests.