Are you planning to migrate legacy mailboxes to Exchange Server 2007? You’ll need to prepare
carefully, and you’ll want to take advantage of a new wizard that streamlines the process
Before you begin, back up your legacy Exchange servers.
Consider upgrading to Microsoft Office Outlook 2007, so users can take
advantage of new features in Exchange 2007 that only work with Outlook
Prepare your Outlook Web Access (OWA) users for possible delays when
migrating large mailboxes that aren’t sorted by the date messages are received.
Launch the Move Mailbox wizard from the Exchange Management Console.
Use the Move Mailbox wizard to make choices on handling corrupted
Use the Move Schedule feature in the wizard to schedule the move. The wizard
lets you schedule a move during off hours. You can also set the wizard to abort
tasks after a given number of hours.
After the move is complete, keep your Exchange Server 2003 servers online
for a few weeks, so you can move mailboxes back to them in the rare instances
where performance or compatibility problems arise.