Announcements
02/10/2026
DELIVERY - Thornton Post Office (76687) - Temporarily Suspended
Announcements
02/10/2026
DELIVERY - Tropical Reef Post Office (33060) - Permanent Move
Announcements
02/06/2026
INFORMATIONAL - USPS APIs System Deployment February 7, 2026
Announcements
02/06/2026
INFORMATIONAL - Commercial System Releases - February 25 2026
Announcements
02/06/2026
INFORMATIONAL - MAILER ID (MID) Validation for Payments POSTPONED
Release Notes
02/06/2026
Informed Delivery API Release Notes V1.2
User Guides
02/05/2026
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.

FAQs
02/05/2026
Plus One FAQs
Announcements
02/04/2026
INFORMATIONAL - USPS Last Mile Informational Webinar
Presentations
02/04/2026
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.