Contact Lists
07/01/2025
07/01/2025
Mail Service Provider (MSP) - Full-Service Certified Mailers
A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet
Contact Lists
06/30/2025
06/30/2025
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025
Contact Lists
06/26/2025
06/26/2025