An apparatus and method for opening an envelope for insertion of a collation. The apparatus includes a plurality of actuated suction cups that are positioned above an envelope in an insertion station. The actuated suction cups move downward to engage a top surface of the envelope and to lift the top surface away from the bottom surface in order to facilitate insertion of the collation. The suction cups include a first group that is actuated for opening all envelopes, and a second group, independently actuatable from the first group, and that is actuated only for opening envelopes having characteristics that require the additional suction cups.