In traditional implementation of CA Service Desk Manager, after installing the Service Desk mail options, a recycle of the Service Desk services is required.
If a recycle of the services cannot be done to avoid downtime the following commands can be executed to have the same effect:
Please be aware that these commands will terminate the Service Desk mail daemon, but will then pdm_daemon_manager will start it again after it detects the old one is down.
Note: So far this is only applicable to the mail options. Advanced Availability topology of Service Desk is normally a recommended approach to avoid most downtime scenarios.