Disabling a post office restricts users from starting the GroupWise client and accessing the post office in Online mode. However, users who are already running the GroupWise client can continue to access the post office; after they exit, they cannot access the post office again until the post office is enabled.
A post office must be disabled if you are rebuilding the post office database (wphost.db). You might also want to disable a post office when you are doing a complete GroupWise system backup. That ensures that all data is consistent at the time of the backup.
In the GroupWise Admin console, browse to and click the name of the post office.
Click the Client Settings tab.
Select Disable Logins, then click Save to disable the post office.
(Conditional) To re-enable logins and make the post office available again, deselect Disable Logins, then click Save to re-enable the post office.