Automated mail openers are considered to be quite durable, and should not require a service contract. Service, when required, usually just involves fixing a jammed machine. To avoid service calls, you simply need to empty the unit's catch tray daily so the holding capacity is not exceeded. If your firm expects to process more than 2,000 pieces a day, make sure steps are in place to ensure that the tray is emptied at regular intervals during the day.