Description

   Use the DELETE command to remove one or more user accounts. By
   default, stored messages for the accounts are deleted silently.
   To cause unread messages to be returned to their originators as
   undelivered, specify /RETURN.

   Use the /MESSAGES qualifier to delete or return a user's
   messages. The account itself will not be deleted.

   When the USERNAME parameter contains wild card characters, all
   matching accounts within the manager's management group and
   subgroups thereof will be deleted. The /GROUP qualifier can be
   used to further constrain which accounts are deleted.