I'm creating a new AD, also installing Exchange 2007. Now my question is we have an office in Texas, that currently has Exchange 2003. That office is moving to our new location, but we need to migrate their mailboxes to my new Exchange 2007 box. My only concern is that old Exchange 2003 will NOT be part of my new domain. How can I go about migrating their mailboxes to our new exchange server?

Hi, Please check whether the following link is helpful Exchange 2007 Cross Org Mailbox Migration http://msexchangeteam.com/archive/2006/11/02/430289.aspx Mike

yes, thanks!