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:
- Plan and prepare
The first phase, plan and prepare, involves:
- Collecting information about the current mail environment.
- Learning about Microsoft and third-party integration and
migration tools and their capabilities.
- Planning for Active Directory and
- This phase collects information that is required to install and
configure the interoperability and migration tools. Determine if
the current network design, topology, and bandwidth are adequate
for the new messaging environment, where to place the
Microsoft Exchange servers, and which Microsoft Exchange
and Lotus Domino servers will be connected for directory
synchronization and mail routing during a coexistence period.
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:
- Preserve message paths to maintain uninterrupted message
transfer During interoperability, users must
be able to route and receive e-mail messages from other corporate
users and with Internet recipients. Make sure that the messages are
transferred to the correct destinations regardless of the
recipient's mail platform.
- Synchronize directory information to maintain consistent and
current address book information When users
send e-mail messages, they have access to a user's current e-mail
address. As a result of this requirement, user and distribution
lists and groups must be maintained in both directories during
- Synchronize calendar information to provide all users with
current free/busy information Many companies
use the calendaring component in Lotus Domino as the primary means
for scheduling meetings. This functionality must be available
during coexistence. This allows users to see when other users are
available for meetings and route meeting requests between the mail
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.