Policy and Procedure Manual: 310-23A- Acceptable Use Policy
University of California, Davis
Relevant Excerpt
Hostile working environment. Users must not use electronic communications resources in a manner that creates a hostile working environment (including sexual or other forms of harassment), or that violates obscenity laws.
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Mass messaging. Users must avoid spamming, and other inappropriate mass messaging to newsgroups, bulletin boards, mailing lists, or individuals.