Mail Fraud is a federal crime in the United States and is defined as using the mail system to intentionally defraud someone out of money or property. It involves using the U.S. Postal Service or other private or commercial mail carriers to send fraudulent or deceptive material with the intent to deceive or swindle someone out of money or property. Types of Mail Fraud include false billing, fake lottery and sweepstakes, pyramid schemes, credit card fraud, charity fraud, and advance fee fraud.