Account holders should not abuse
any electronic mail, bulletin board, or
communications system, either local or remote,
by sending rude, obscene, or harassing messages
(including chain letters) or by using these systems
for nonessential purposes during times when the
computers are in heavy demand. Account holders should identify themselves clearly and accurately in all electronic communications, i.e., no anonymous postings. Unofficial mass
e-mailings (i.e., spam) are prohibited.