User Guides
10/26/2021
How to Submit Mail.XML Jobs to PostalOne!®

This guide provides step‐by‐step instructions for submitting electronic mailing information into the USPS® for Full‐Service letters & flats.

User Guides
10/26/2021
How to Submit Mail.dat Jobs to PostalOne!®

This document is a comprehensive guide that outlines steps for exchanging electronic data with the PostalOne!® system using the Mail.dat file format.

Announcements
10/25/2021
DELAYED RECEIPT - Oct-28-2021 -USPS Returns/Outbound Service and EPS IV-MTR Data Feeds (10.25.2021)
Announcements
10/25/2021
New Vice President Business Solutions
Publications
10/25/2021
USPS Trade Show Calendar - FY 22
Release Notes
10/25/2021
January 2022 Release Overview

This document describes information for changes under review for the next structural implementation. This document is prepared and based on the knowledge available at the time of its printing and any direction found herein is subject to change prior to the release. The contents of this document are pre-decisional, and subject to change based on Board of Governors and Postal Regulatory Commission decision.

Announcements
10/22/2021
[NO CUSTOMER IMPACT] Scheduled Maintenance Activities - October 24, 2021 (10.22.2021)
Announcements
10/22/2021
Service Type ID Table Updated for Ballot Mail and Political Mail
Presentations
10/22/2021
Pre-Mailers’ Technical Advisory Committee (Pre-MTAC) Webinar October 19, 2021

Access Passcode Q^C4686Q

Announcements
10/21/2021
Service Performance for First-Class Mail and Periodicals Improves as Peak Season Nears