Abstract: A remailable envelope having a first closure flap hinged to the front panel and being separable from the front panel. A remailable panel is hinged to the rear panel and can overlap the front panel to the full extent thereof, and a second closure flap is hinged to the remailable panel. The remailable panel extends over the front panel, and the second closure flap folds over the bottom edge of the envelope to be sealed to the rear panel. Remailing intelligence is provided on the remailable panel which itself covers the first addressee's information on the front panel and any bar codes which might appear on the front or rear panels.