Lotus Domino Administrator 6.5 Help - Preparing to migrate Exchange users

MAIL AND DIRECTORY MIGRATION

Preparing to migrate Exchange users
Before migrating users from Microsoft Exchange to Notes, complete the following tasks:

Determine the order in which you want to convert your Exchange servers to Notes. This should be your migration schedule.
On your administrative workstation, install the Domino 6 Administrator client and the optional Microsoft Exchange Domino Upgrade Service. You must perform a custom installation to install the migration tools component.
Back up Domino information.
Verify that you have access to the certifier IDs and passwords for the Domino organizations and organizational units where you are registering users.
Verify that you have Editor, Designer, or Manager access rights to the Domino Directory on the Registration Server.
From the administrative workstation, log in to Notes with a Notes ID that has "Create database access" on the Mail server.
On the administrative workstation, close all applications except for Notes, and close any Notes databases.
(Optional) Set default registration preferences.
(Optional) Create a Notes group that you can add migrated users to.
Send any pending Microsoft Exchange messages by making sure Synchronization has been performed on each client.
Perform an Exchange Directory Synchronization to ensure that the Exchange directory being migrated is complete. For more information about Exchange Directory Synchronization, refer to the Microsoft Exchange documentation.
Make sure the workstation running the Domino Administrator has an Outlook or Exchange client installed and an Administrator mail profile that points to the Exchange server.