I have domain X running exch 2007.
I have domain Y running exch 2007 server. Separate forests.
Im migrating domain X to Domain Y. All the users in domain X, already have new account and mailbox created in domain Y. We did not run ADMT for this process so no SID history is available. Is there a way to move domain X mailboxes to Domain Y and merge the contents of domain X mailboxes to the users new mailbox in Domain Y ? The naming schemes are different as well (domain X, fistinitallastname, domain Y firstname.lastname).
All the mailboxes on domain Y are empty. They are just forwarding mail.
What options are available to accomplish the moving/merging of mailboxes from domain x to domain Y in this scenario?