Mailer IDs (MID) and Customer Registration IDs (CRID) Version 3 Release 22: MID-CRID Mail.XML 16.0

This document contains information pertaining to Mail.XML release version 16.0 and the following USPS PostalOne! Releases: Release 41 April 2015, Release 42 January 2016, and Release 43 April 2016.

April 29, 2016
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