Error Codes
11/09/2017
Mail.dat Validations R47 (Excel Version)

Mail.dat error codes

Tech Guides
11/09/2017
Mail.dat Technical Specifications R47 V3

Version 3 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! system.

Release Notes
11/08/2017
PostalOne! Release 46.0.1.1 Release Notes - Change 1.0
Release Notes
11/06/2017
PostalOne! R46.0.1.0 Release Notes - Chg1.0
Data Files
11/04/2017
Address Information System (AIS) Area District Record Description

File layout for Address Information System (AIS) area district record descriptions.