MAIL PROCESSING SYSTEM FOR DETERMINING MAIL ENTITY DEFECTS AND CORRECTING MAIL ENTITY DEFECTS

A method for providing a mailer with detailed information regarding the mailer's preparation of mail entities and the post's processing of mail entities. The foregoing allows the mailer to improve subsequent preparation of mail entities to make it easier for the post to process and deliver mail in a timely manner. The invention also allows the post and the mailer to distinguish between mailer's processing defects and errors caused by faulty postal equipment.