Opens and sorts incoming mail and inter-office papers for distribution; collects and prepares outgoing letters, packages, etc., for mailing. Determines postage requirements and affixes stamps. May operate machines such as letter opener, sealer, stamper, bundler. Keeps reports on postage. Distributes incoming and inter-office mail. May perform related clerical duties such as counting and filing. May deliver and pick-up mail at post office. May drive vehicle.