Technical Specifications
03/10/2020
Technical Specifications
10/03/2019
Technical Specifications
10/03/2019
Error Codes
06/26/2019
Error Codes
06/26/2019
Release Notes
01/27/2019
January 2019 Release Notes (Change 3.0) (1/27/19)

Please note that the URL of this page has been updated to: https://postalpro.usps.com/Releases/Jan2019Release_Price_Change/release_notes_01272019

Release Notes
01/13/2019
January 2019 Post-Release Notes Change 5.0 (1/13/19)

On Sunday, January 13, 2019, the United States Postal Service implemented the following software changes:

Release Notes
12/07/2018
PostalOne! R48.0.0.0 Release Overview (January 2019)

This pre-release document describes potential changes under review for the next structural implementation.

Release Notes
12/07/2018
PostalOne! R48.0.0.0 Release Overview (January 2019)

This pre-release document describes potential changes under review for the next structural implementation.

Data Files
12/03/2018
2019 Labeling List and Mail Direction File Schedule

Labeling Lists production schedule.

Data Files
12/03/2018
2019 Labeling List and Mail Direction File Schedule

Labeling Lists production schedule.

Technical Specifications
11/30/2018
Mail.dat Technical Specifications R48 (Version 3)

Version 3 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

Technical Specifications
11/30/2018
Mail.XML Technical Specifications R48 (Version 3)

Version 3 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

Presentations
11/19/2018
Fact Sheets
11/17/2018
Error Codes
10/10/2018
Mail.XML Validations R48

Validations for mail.

Error Codes
10/10/2018
Mail.dat Validations R48

Validations for mail.dat pertaining to R48 of PostalOne!.

Announcements
10/10/2018
January 2019 Price Change Prices and Postage Statements

Prices and postage statement changes, including redlines, for the 2019 price change.