OrderCup is a web based service that makes order processing and shipping more efficient and less costly. Orders can be processed individually or in bulk. It allows you the flexibility to use any of the major shipping carriers, and it even has built in accounts with Endicia and Stamps.com, just to name a few. Return labels and packing slips can easily be created. OrderCup also has a built in address validation system for domestic and international shipping addresses. This is a subscription based service, with many plan levels to suit your company's needs.