Abstract: An apparatus for automatically acquiring and verifying, relative to pre-established rules, address information and postage value indicia on a face of each of a plurality of mail pieces. The mail pieces can be subsequently placed in a tray and a label is applied to the tray, the label imprinted with information which relates to the mail piece content of the tray. The apparatus includes an inserter adapted to insert documents into an envelope and seal the envelope to produce a finished mail piece or a sorter which conveys finished mail pieces, with the address information and postage value indicia visible on a face of each mail piece. An in-line module is disposed adjacent the inserter, the module including a path along which each finished mail piece is transported.