06/18/2025
PostalOne! Release 62.0.0.0 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 62.0.0.0
06/18/2025
06/18/2025
PostalOne! Release 62.0.0.0 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 62.0.0.0
06/18/2025
PostalOne! Release 62.0.0.0 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 62.0.0.0
06/13/2025
Informed Delivery Mail.XML Mailer Guide
This is a guide for submitting campaigns to PostalOne! via Mail.XML electronic documentation (eDoc).
06/13/2025
Informed Delivery Mail.dat Mailer Guide
This is a mailer guide for creating campaigns via PostalOne! through Mail.dat eDoc submission.
05/06/2025
eVS to USPS Ship Migration Tech Sheet
The Postal Service is retiring the electronic verification system (eVS). eVS customers must migrate to USPS Ship or USPS APIs by February 2025. This includes customers using Premium Forwarding Services Commercial (PFSC) and Click N Ship BusinessPro (CNBPro). This document outlines the differences between the two platforms and steps to migrate from eVS to USPS Ship.
05/06/2025
05/06/2025
03/07/2025
Secure Destruction Technical Guide
A technical reference for implementing the Secure Destruction process