Reestablish Coexistence for Migrated Mailboxes

If you want to reestablish coexistence between Exchange 2000 and Exchange 5.5, create a custom recipient on Exchange 5.5 for each mailbox you migrated and deleted. Custom recipients appear in the address book and can receive messages from users still on Exchange 5.5.

You can create custom recipients either manually or automatically:

• If you installed Active Directory Connector and suspended replication before running Migration Wizard, now is the time to resume replication. Active Directory Connector automatically creates custom recipients for the migrated mailboxes.
• You can manually create custom recipients on Exchange 5.5. For information about creating custom recipients, see the Microsoft Exchange 5.5 server documentation.