Postal Service Mail.dat Technical Specification v3 (includes R40, 41 and 42) | PostalPro

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Postal Service Mail.dat Technical Specification v3 (includes R40, 41 and 42)

Postal Service Mail.dat Technical Specification v3 (includes R40, 41 and 42)

This document is a comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! ® system using the Mail.dat® file format.

January 15, 2016

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