Since the advent of Electronic Mail, enterprising and morally gray entrepreneurs have been using unsolicited email, or SPAM, to play the odds and make a buck. The emails they send range from semi-legitimate to downright illegal, and the unfortunate truth is, there's very little that can be done to stop them.
Today SPAM accounts for 14.5 billion email messages a day, or 45% of all emails. Most of these are advertising (36%), with adult content at a close second place(31.7%). Despite SPAM's reputation, scams and fraud account for only 2.5% of all unsolicited email (75% of which are identity theft scams). Spam blockers help weed out many of the worst offenders, but plenty of SPAM still gets through.