A modular integrated software and hardware suite can accept data exported from a voter registration database corresponding to requests for mail ballots, sort the data as necessary for ballot preparation, create a road map for ballot mailing preparation, provide for mail presorting, scan returned ballot envelopes using a ballot envelope scanner, and accept data from the scanner. The scanner uses a passive feed system, a separator brush, and a variable speed straight paper path to minimize jamming through the ballot envelope scanner. The scanner can work with a workstation application to interpret a barcode, store an image of the ballot envelope signature in association with a specific voter, print an endorsement on each verified ballot envelope, and store the endorsement with the signature image. The scanner can divert ballot envelopes with unrecognizable or unmatched barcodes to a separate tray for manual processing.