Mail.XML 12.0B Technical Specification FAST®

This document contains information pertaining to Mail.XML release version 12.0B and the following USPS FAST Releases: Release 27 January 2014, Release 28 August/September 2014, Release 30 January 2015, Release 31 May 2015, Release 32 January 2016, Release 34 September 2016

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