CASS™ Processing


CASS™ Processing

CASS™ is a certification system from the United States Postal Service (USPS) for software that processes mailing lists. When mailers process their address lists using software that is CASS™ Certified, they are able to obtain bulk mail discounts from the USPS. CASS software will standardize your mailing list, update outdated addresses, and verify that addresses are valid and complete. It will also provide you with a form that you can submit with your mail to obtain a discount.

LiveAddress for Lists does the following:


If you want a bulk mail discount, you are required to process your address list on CASS-Certified™ software, such as the software offered by SmartyStreets. Even if you don't need a discount, cleaning up your address list and including the delivery point barcode and a complete, standardized address on the mailpiece will speed up delivery of your mail.