Abstract: A mailer blank having a return receipt post card which can be printed on both faces thereof by a single pass through a non-impact, simplex printer is described. The return receipt post card is configured to present all areas to be printed with variable information on a single face of the postcard, thereby allowing printing of all variable information in a single pass through the printer. The post card is provided with fold lines such that a unique folding pattern results in formation of a post card of standard size and uniform thickness, and having the variable printed information ultimately positioned at desired locations on both sides (faces) of the post card.