When the Microsoft Mail Connector is installed, four new resources are added to the Microsoft Exchange Server cluster group:
All the new resources except the maildat$ file share remain offline after the initial configuration. While in this state, use the following procedures to ensure proper operation of the Microsoft Mail Connector in a Microsoft Exchange Server cluster. Be sure to note the service name that you are using.
To configure the Microsoft Mail Connector on a clustered server
SYSTEM\CurrentControlSet\Services\service name
To remove an instance of a PCMTA
After the Microsoft Mail Connector is configured, you can configure the Microsoft Schedule+ Free/Busy Connector and the Directory Synchronization service. After you have configured these services in the Administrator program, complete the following procedure.
To configure Microsoft Schedule+ Free/Busy Connector
Repeat this procedure for the Directory Synchronization service.
Now you can bring the resources online. This ensures that the services restart as expected when the node fails over to the other computer.