<p>A method for expelling air out of mailpieces includes the steps of creating a stack of the mailpieces (601), cutting an opening in at least some of the mailpieces (603), jogging the stack of mailpieces (605), and subjecting the stack of mailpieces to a compression cycle (607) and a decompression cycle (609) during the jogging step (611) for expelling air out of the some of the mailpieces through their corresponding openings.</p>
