Announcements
11/23/2024
11/23/2024
Announcements
11/22/2024
11/22/2024
Announcements
11/22/2024
11/22/2024
Announcements
11/22/2024
11/22/2024
Release Notes
11/22/2024
11/22/2024
USPS APIs Release Notes
For the latest updates, please review the USPS APIs Release Notes.
Data Files
11/22/2024
11/22/2024
Intelligent Mail Small Business (IMsb) Tool Industry Session Recording
This industry presentation provides an overview of the Intelligent Mail® for Small Business Tool for new users.
Contact Lists
11/21/2024
11/21/2024
Contact Lists
11/21/2024
11/21/2024
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
11/21/2024
11/21/2024
Contact Lists
11/21/2024
11/21/2024