Release Notes
11/14/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

Announcements
11/13/2026
INFORMATIONAL: International Service Suspension Notice - Effective November 14, 2026
Release Notes
11/13/2026
PTR1 Release Notes_DD_11_14_26
Contact Lists
11/13/2026
Business Acceptance Solutions & Major Mailer Support Directory

This document provides a contact list for Business Acceptance Solutions (formerly Business Mailer Support) & Major Mailer Support

 

Announcements
11/12/2026
INFORMATIONAL: U.S. Postal Service Recommends Shipping Price Adjustments for 2027
Announcements
11/12/2026
INFORMATIONAL: U.S. Postal Service Recommends Shipping Price Adjustments for 2027
Contact Lists
11/12/2026
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
11/12/2026
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
11/12/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)
Contact Lists
11/12/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)