Intelligent Mail® Package Barcode (IMpb) ACS™ Technical Guide

Technical guide for users of Intelligent Mail® Package Barcode (IMpb) Address Change Services (ACS). Includes a solution overview, features, participation requirements, and service endorsement options.

Traditional ACS™ with Shipper Paid Services Technical Guide

This document is a guide that provides technical information about Traditional ACS™ with shipper paid services.

Informed Delivery API Technical Specifications v4.2.3

Technical Specs are based on v4.2.0 of the XML schemas.

This is the Technical Specifications guide for the Informed Delivery API - Release 4.3 on 3/30/2023

12-21-23 - New version to fix a few minor typos.

PostalOne! Release 59.0.0.0 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 59.0.0.0

PostalOne! Release 59.0.0.0 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 59.0.0.0

PostalOne! Release 59.0.0.0 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 59.0.0.0

PostalOne! Release 59.0.0.0 Mail.XML CAT WSDLs

Informed Delivery Saturation Campaign Mailer Guide

This guide outlines the requirements for participating in and submitting Saturation Campaigns via PostalOne! eDoc (Mail.dat) during the Informed Delivery Promotion. 

For more in-depth details on general promotion requirements, refer to the Promotions page. 

Trailing Edge Die-Cut (Ted-C) Letters Template

Template with instructions for Trailing Edge Die-Cut (Ted-C) Letters.
Template must be printed at "actual size".

PostalOne! Release 58.0.0.0 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 58.0.0.0