Hate mail (as electronic, posted, or otherwise) is a form of harassment, usually consisting of invective and potentially intimidating or threatening comments towards the recipient. Hate mail often contains exceptionally abusive, foul or otherwise hurtful language.
The recipient may receive disparaging remarks concerning their ethnicity, sexuality, religion, intelligence, political ideology, sense of ethics, or sense of aesthetics. The text of hate mail often contains profanity, or it may simply contain a negative, disappropriating message.
-  The Forensic Linguistics Institute
- Dear, Michael (January 2001), The politics of geography: - hate mail, rabid referees, and culture wars, Political Geography 20 (1): 1–12, doi:10.1016/S0962-6298(00)00033-0, ISSN 0962-6298
- Temkin, Benny; Yanay, Niza (October 1988), 'I Shoot Them with Words': An Analysis of Political Hate-Letters, British Journal of Political Science 18 (4): 467–483, doi:10.1017/S0007123400005226, JSTOR 193881
- "Jewish activists opposing the Israeli government's policies face intimidation and harassment via email and on the internet." Guardian Unlimited, 19 January 2004
- "Racist Hate Mail Found In Durham Mailboxes" WRAL-TV, 10 October 2006