Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007
Topic Last Modified: 2006-09-01

The process of moving from a Lotus Notes directory and messaging system to Active Directory directory service and Microsoft Exchange Server 2007 occurs in three distinct phases:

The first phase, plan and prepare, involves:

In this phase, you also define an overall plan and schedule. The plan should be tested in a lab environment that simulates the production environment as closely as possible.

The second phase, interoperate, is where some users have been migrated to the Microsoft platform, while other users are still using Lotus Notes. These two environments use the interoperability tools available from Microsoft to synchronize directory information and to perform free/busy lookups. Mail is routed between the Lotus Domino 6.x and 7.x servers and Exchange 2007 servers via Simple Mail Transfer Protocol (SMTP).

Issues that you should consider when planning for interoperability include:

In the third phase, migrate, users are moved from the Lotus Domino messaging platform to Exchange 2007. By migrating users in batches, you have the ability to modify and update the migration and training methodologies based on experience. This approach also limits the number of users migrated to a new platform and thus reduces the number of calls to the Help desk by new users. Users should be batched based on their workgroups and locations, so that users and their assistants are able to continue to work together with minimal interference.

While users are being migrated in batches, they require the ability to send mail and check free/busy information for users on both systems. After all users have been migrated to Exchange, the interoperate and migrate phases are complete.

For More Information

For additional guidance about these phases and information about tools from Microsoft that enable interoperability and migration from Lotus Domino to Exchange, see the Microsoft TechNet Resources for Moving to the Microsoft Collaboration Platform Web site.