8.140 Possession of Stolen Mail (18 U.S.C. Sec. 1708) is a federal crime that makes it illegal to possess, conceal, or retain stolen mail that is intended to be delivered by the United States Postal Service. This offense is punishable by a maximum of five years in prison and/or a fine of up to $250,000. Types of 8.140 Possession of Stolen Mail (18 U.S.C. Sec. 1708) include possession of stolen mail with intent to use, concealment of stolen mail, and retention of stolen mail.