Together with a device for receiving mail items that has a conveyor belt designed to receive and to convey the mail items from a franking station of a mail handling machine, a device is provided for stacking mail items that has a plurality of rollers disposed in staggered manner on a plurality of axles whose ends are fixed to respective ones of two support walls between which the axles extend, which support walls are mutually parallel and are spaced apart by at least the width of said conveyor belt.