Mark the user as deleted by running the commadmin user delete command.
Remove resources from the user.
A resource can be a mailbox or a calendar.
For mail services, the program is called msuserpurge. Refer to the Sun Java System Messaging Server Administration Reference for information about the msuserpurge utility.
For calendar services, the program is csclean. Refer to the Sun Java System Calendar Server Administration Guide for information about the csclean utility.
Permanently remove the user, by invoking the following command: commadmin domain purge.