Technical Specifications
02/15/2018
Mail.XML Technical Specifications R47.1.0.0 (Version 2)

Version 2 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

Technical Specifications
01/30/2018
Mail.XML Technical Specifications R47.1.0.0 (Version 1)

Version 1 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

3/25/2018

Technical Specifications
01/30/2018
Mail.dat Technical Specifications R47.1.0.0 (Version 1)

Version 1 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

 

3/25/2018

Technical Specifications
01/05/2018
Mail.dat Technical Specifications R47 V4

Version 4 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! system.

Technical Specifications
10/22/2017
Postal Service Mail.dat Tech Specs Version 2 Release 46
Technical Specifications
05/24/2017
Mail.dat Tech Spec R45.2.0.0 Version 1
Technical Specifications
04/26/2016
Postal Service Mail.dat Technical Specification Version 1 Release 44

Postal Service Mail.dat Technical Specification Version 1 (R44) is a comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! ® system using the Mail.dat® file format.

Technical Specifications
01/15/2016
Postal Service Mail.dat Technical Specification v3 (includes R40, 41 and 42)

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

Technical Specifications
01/14/2015
Transportation Instruction Icons

.JPG Files of Icons

Technical Specifications
Click here for the current USPS SKU User Guide