I have been transitioning mailboxes from an Exchange 2003 server to a new Exchange 2007 server. Most of the mailboxes have moved over correctly. Some of the mailboxes after "successfully" moving over, still show as Legacy Mailbox. When I look at the System Manager on the Exchange 2003 server, a very small portion of the mailbox is still there. How do I clear this up?
I have already tried using the ESM Shell command:
Set-Mailbox -id alias -ApplyMandatoryProperties
The result is that the command completes successfully, but no settings have been modified.
Anyone have any advice?