Mark the user as deleted by running the commadmin user delete command. (See the Chapter 5, Command Line Utilities, in Sun Java System Communications Services 6 2005Q4 Delegated Administrator Guide.
Remove services from the user.
A service can be a mailbox or a calendar. For the current version of Messaging Server, the program is called msuserpurge. (See msuserpurge in Sun Java System Messaging Server 6 2005Q4 Administration Reference). For calendar services, the program is csclean. (See the Sun Java System Calendar Server 6 2005Q4 Administration Guide.)
Permanently remove the user, by invoking the commadmin domain purge command.