In rare circumstances, UH or an affiliate organization may request that an individual be banished. Banishment is permanent, results in account lockdown, and prevents a person from obtaining a new UH Email Account or UH Username and all cooperating affiliated campuses and departments. Requests for banishment should be sent to the ITS Security team. Requests will require substantiating evidence and a full explanation of why banishment is recommended. Requests will be investigated before a final recommendation is made and implemented. Legal action is also a possible outcome of the investigation.
ref: http://www.hawaii.edu/its/email/emailpractices.html#banishment