2021 Technical Information
This document contains information pertaining to Mail.XML and the USPS PostalOne! Release 184.108.40.206 taking place in January 2021.
This document is a comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne!® system using the Mail.dat® file format.
The new Promotions 2021 document pertaining to registering, mailing submissions, mail acceptance.
This is the Mailer Onboarding Guide for Informed Delivery Campaigns. This covers how to set up a Business Customer Gateway (BCG) account and permit account for testing Mail.dat and Mail.XML eDoc submissions for creating Informed Delivery Campaigns to PostalOne!
Please note, that as of July 2019, all new BCG accounts will need to be verified and approved by the Help Desk before they can be used for testing.