At the beginning stages of testing the migration of Exchange 2003 to Exchange 2007 and the customer has stated that migrating mailboxes from Exchange 2003 to the Exchange 2007 server is taking to long. Unfortunately the Exch 2003 and 2007 are separated by a 20 MB MPLS WAN link.
I've got 3 questions:
1. What protocols are used when migrating (moving) an Exchange 2003 mailbox from a 2003 Exchange server to an Exchange 2007 mail server (within an Windows 2003 AD environment).
2. Is it faster to export to PST - move an empty mail box to the 2007 - import pst....or move user with the exchange migration tool?
3. How long should moving a 100MB user mail take? Is there a method that can be used to calculate how long it should take?