This suite currently consists of three programs, Postal, Rabid, and BHM. Postal (the mad postman) is a program that will deliver mail as fast as possible via the SMTP protocol to test mail server performance. Rabid (the mad Biff) will eat mail via the POP protocol as fast as possible and measure POP server performance. BHM is the Black Hole Mailer to discard SMTP mail. All messages sent via Postal have MD5 checksums appended, and Rabid will check the MD5 to ensure that the messages are not being corrupted.