Our company recently went through a merger. We are migrating from an old 2003 domain with exchange to a new 2003 domain with exchange.
Acme (Source) - has AD domain that will no longer be used, but holds the current Exchange 2003 server and all user mailboxes for entire NewCompany
NewCompany (Target) - has AD domain that will be used enterprise wide and domain users are already established. Exchange 2003 is installed and we want to migrate the Acme exchange mailboxes to this new domain/exchange.
Running into some problems with the following scenario:
1.) We have user John.Doe in the Acme domain (with mailbox)
2.) We also have that same user as jdoe in the NewCompany domain (with no mailbox)
3.) We want to migrate all the emails, contacts, settings etc from #1 to #2, but every time we use the migration tools, it tries to create a new user account on the target domain (NewCompany) Basically to join the two accounts together into one on the new target domain.
We've read through the technet articles and other help sites, but nothing describes the scenario above. Any advice would be appreciated, as we're trying not to redo all 100+ accounts and mailboxes.