Can this be done with Mailbox Manager with a multiple modify setting...? Not sure - might be worth a look.
Are you only wanting to change the domain of the user, or each user has a unique address? user@zyx.com, user@xyz.com, etc...?
Thanks,
CJH
We are what we repeatedly do. Excellence, then, is not an act but a habit. ARISTOTLE 384-322 B.C.