Select Users in the Server app sidebar.
Select the user account to delete.
Click Remove
.
You can use the Server app to delete user accounts that are no longer needed.
Deleting a user account cancels its group memberships and stops its access to group services and private wikis. Deleting a user account also deletes the user’s mail stored on the server. A deleted user account can no longer access calendars and contact information on the server.
Deleting a user account doesn’t remove the user’s backup data. If Time Machine preferences on the deleted user’s computer were set to use the server for backup storage, the user’s backup data remains in /Shared Items/Backups/ on the backup disk specified in the Time Machine pane of the Server app.
Select Users in the Server app sidebar.
Select the user account to delete.
Click Remove .