Email Bomb - (Mail bomb, Mailbombing, Mailbomb. Associated with Denial of Service Attack, DoS Attack, Zip Bomb, Mass Mailing, List Linking) - Mail bombs expand to fill up tremendous amounts of space in an e-mail program and/or hard drive. Mail bombs can also make a computer crash.  These are bad news!

Zip Bomb - https://en.wikipedia.org/wiki/Zip_bomb

Denial of Service Attack  (DoS Attack) -
https://en.wikipedia.org/wiki/Denial-of-service_attack