The CAN-SPAM Act of 2003, signed into law by President George W. Bush on December 16, 2003, establishes the United States' first national standards for the sending of commercial e-mail and requires the Federal Trade Commission (FTC) to enforce its provisions.
CAN-SPAM defines a "commercial electronic mail message" as "any electronic mail message the primary purpose of which is the commercial advertisement or promotion of a commercial product or service (including content on an Internet website operated for a commercial purpose)."
