Tech Guides
03/22/2022
2022 Informed Delivery Promotion Technical Implementation Guide for Mailers
Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 53.0.0.0

Tech Guides
05/24/2021
PostalOne! Release 55.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 55.0.0.0

Tech Guides
03/11/2021
FAST Mail.XML 16.0 Technical Specification

Postal Service Technical Specifications for FAST.

Tech Guides
02/11/2021
Intelligent Mail Tray Label Technical Fact Sheet

This document provides fact sheet providing technical specifications on the acquisition, implementation, and benefits of the Intelligent Mail Tray Label.

Tech Guides
02/01/2021
eVS® File Format v2.0

Appendix C: Shipping Services File Version 2.0 (as of 12/31/2020).

Tech Guides
02/01/2021
eVS® File Format v1.7

Appendix B: Shipping Services File Version 1.7 (as of 12/31/2020).