Acording to the case of White Buffalo Ventures, L.L.C. v. University of Texas at Austin
Because the term “spam” is often thought of pejoratively, it is important to note that although that term necessarily implies that the email was unsolicited, the more general meaning does not
(1) imply anything about the veracity of the information contained in the email;
(2) require that the entity sending it be properly identified or authenticated; or
(3) require that the email, even if true, be commercial in character.
There nonetheless appears to be no consensus as to the precise meaning of the term “spam,” which is sometimes used synonymously with unsolicited “bulk” email.
A set of spam messages sent out together is called an email “blast.”
The term “spam” derives from a 1970 Monty Python Flying Circus sketch in which a waitress recites a menu containing “egg and spam; egg bacon and spam; egg bacon sausage and spam; spam bacon sausage and spam; spam egg spam spam bacon and spam; spam sausage spam spam bacon spam tomato and spam . . . .”
