Relevant excerpt
Conduct less than a physical attack or physical interference which interferes with a person in the conduct of his or her customary or usual affairs, such as the posting of threatening letters directed to the person, the use of threatening language directed at another, harassing or threatening telephone calls, email, voicemail, posting of materials in on-line communities, instant messaging (IM), or the vandalism of a person’s room (e.g. by graffiti). The University has special concern for incidents in which persons are subject to such conduct because of membership in a particular racial, religious, gender or sexual orientation group.