INFORMATIONAL - Commercial System Releases - February 25 2026

INFORMATIONAL - MAILER ID (MID) Validation for Payments POSTPONED

Deadline Extension 2026 NPF Ticket Contest

Informed Delivery API Release Notes V1.2

Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker

This document provides a list of active IV-MTR work to be as well as items completed in FY25.

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Mailing and Shipping Solutions Center (MSSC) Topics

List of topics the MSSC can assist with. To reach the MSSC, email us at MSSC@usps.gov or call 1-877-672-0007 from 7:00AM – 7:00PM CT.

Plus One FAQs

INFORMATIONAL - USPS Last Mile Informational Webinar

Last Mile Bidding Process-Slide Deck

Shippers who wish to access the DDU network will have the ability to propose a combination of volume, pricing and tender times at each location, with deliveries for successful bidders being made by USPS that same day or the next day, at the customer’s preference.

To view the presentation recording, please click here.

Last Mile Bidding Process Webinar

Shippers who wish to access the DDU network will have the ability to propose a combination of volume, pricing and tender times at each location, with deliveries for successful bidders being made by USPS that same day or the next day, at the customer’s preference. 

Note that the bidding closes on February 17, 2026.

To view the slides, please click here.

Please use passcode 2@^xbEHT to access the webinar.