Technical Specifications
06/09/2019
Technical Specifications
04/08/2019
Technical Specifications
11/30/2018
Mail.dat Technical Specifications R48 (Version 3)

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

Technical Specifications
11/30/2018
Mail.XML Technical Specifications R48 (Version 3)

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

Error Codes
10/10/2018
Mail.XML Validations R48

Validations for mail.

Error Codes
10/10/2018
Mail.dat Validations R48

Validations for mail.dat pertaining to R48 of PostalOne!.

Tech Guides
05/04/2018
Informed Delivery Mail.dat IMb Serialized [RMR Presort]

Informed Delivery Mail.dat Technical Specification

Technical Specifications
02/15/2018
Mail.dat Technical Specifications R47.1.0.0 (Version 2)

Version 2 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! System.

Technical Specifications
01/05/2018
Mail.dat Technical Specifications R47 V4

Version 4 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! system.

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.

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

Postal Service eDoc Error Codes

Error Codes
11/09/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
06/21/2017
Technical Specifications
05/24/2017
Technical Specifications
11/13/2015
Mail.xml Technical Specifications: FAST 16.0, Version 1 Release 32 (January 2017)

This document contains information pertaining to Mail.

Technical Specifications
11/13/2015
Mail.xml Technical Specifications: FAST 14.0A, Version 1 Release 32 (January 2017)

This document contains information pertaining to Mail.