Thought I'd define spam, courtesy of dictionary.com:
Unsolicited e-mail, often of a commercial nature, sent indiscriminately to multiple mailing lists, individuals, or newsgroups; junk e-mail.
tr.v. spammed, spam·ming, spams
To send unsolicited e-mail to.
To send (a message) indiscriminately to multiple mailing lists, individuals, or newsgroups.