How to Change Domain Association of Exchange User?

[JPM]

We have two domains in two differet forests. Domain XXX.com and Domain
YYY.com.

We migrated our users from Exchange 5.5 to Exchange 2003; however, the users
are still associated to our old XXX.com. Some of the users are now in
YYY.com but whose accounts are still associated to XXX.com - how do I change
it so the users Exchange domain association are also YYY.com (the correct
one)?

Thanks.

[Teo Gomez]

In an Exchange 5.5 migration, the primary mailbox owner must be an actual
account in AD otherwise the ADC creates an account for the mailbox. Once
this happens you have options to re-associate the account.
1.Manually Re-associate the account
a. http://support.microsoft.com/?id=256862
2. Run the Account Cleanup Wizard
a.http://support.microsoft.com/?kbid=270652


"JPM" wrote:

We have two domains in two differet forests. Domain XXX.com and Domain
YYY.com.

We migrated our users from Exchange 5.5 to Exchange 2003; however, the users
are still associated to our old XXX.com. Some of the users are now in
YYY.com but whose accounts are still associated to XXX.com - how do I change
it so the users Exchange domain association are also YYY.com (the correct
one)?

Thanks.