This document provides a technical guide for MASS™ Cycle O. MASS™ is an extension of the CASS™ system.
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.
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.
This is the Technical Specifications guide for the Informed Delivery API - Release 4.3 on 3/30/2023
Technical Specs are based on v4.2.0 of the XML schemas.
This guide details technical information about the National Zone Charts Matrix. A few topics in this guide include Defining a Zone, Matrix File General Information, and Matrix Zone Determination.
Template with instructions for Trailing Edge Die-Cut (Ted-C) Letters.
Template must be printed at "actual size".
This is a guide for submitting campaigns to PostalOne! via Mail.XML electronic documentation (eDoc).
This is a mailer guide for creating campaigns via PostalOne! through Mail.dat eDoc submission.