AES is USPS CASS certified for ZIP+4, Carrier Route, 5Digit, eLOT, PAVE and DPV throughout the USA and Puerto Rico. Mail STAR address verification software can be used to validate individual addresses or process huge address lists. Mail STAR address correction software also provides USPS CASS address verification service to your applications. AES provides the world?s most comprehensive suite of mailstream software, hardware, services and solutions to help companies manage their flow of mail, documents and packages to improve communication. AES takes an all-inclusive view of its customers? operations, helping organizations of all sizes enjoy the competitive advantage that comes from an optimized mailstream. The company?s 13 years of technological leadership have produced many major mailstream innovations, and is certified and recommended by the USPS as a valuable business partner.