CASS™ Technical Guide for Cycle O

This document provides a technical guide for the CASS™ product. The CASS certification process is designed in cooperation with the mailing industry to improve the accuracy and deliverability of addresses for mail qualifying for postal discounts.

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

PostalOne! Release 58.0.0.0 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 58.0.0.0

PostalOne! Release 58.0.0.0 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 58.0.0.0

PostalOne! Release 58.0.0.0 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 58.0.0.0

IV-MTR API Developer Toolkit

The Developer Toolkit provides information about using the Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Application Programming Interface (API). The API enables the mailing industry to integrate mobile and web-based applications with near real-time IV-MTR data through a lightweight data exchange.

NCOALink® User Technical Reference Guide

This document is a technical reference guide for NCOA^Link®.

PostalOne! Release 57.0.0.0 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 57.0.0.0

PostalOne! Release 57.0.0.0 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 57.0.0.0

PostalOne! Release 57.0.0.0 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 57.0.0.0

PostalOne! Release 57.0.0.0 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 57.0.0.0

Informed Delivery API Technical Specifications v4.1.0 9-1-2022

This is the Technical Specifications guide for the Informed Delivery API - Release 4.1.0 on 9/1/2022

Informed Delivery Promotion Validation CAT Test Scenario Checklist - Mail.XML

Informed Delivery Promotion Validation CAT Testing Scenarios for Mail.dat

Informed Delivery Mailer Onboarding Guide

This is the Mailer Onboarding Guide to assist in the initial set up to submit Informed Delivery Campaigns via eDoc in the CAT (Customer Acceptance Testing) environment. This covers how to set up a CAT Business Customer Gateway (BCG) account and permit for testing Mail.dat and Mail.XML eDoc submissions that include campaign data to create Informed Delivery Campaigns via PostalOne!

All new BCG accounts will need to be verified and approved by the CAT Help Desk before they can be used for testing.

Informed Delivery API Technical Specifications v4.0.1 6-1-2022

This is the Technical Specifications guide for the Informed Delivery API - Release 4.0.1