PostalOne! January 2019 Changes

The USPS issued the PostalOne! January 2019 release notes, to become effective January 27, 2019. Included in this document are the changes that are under consideration for [...]

January 2018 PostalOne! Changes

On Sunday, January 7, 2018, the United States Postal Service will implement the following software changes: 1) PostalOne! System Release; 2) Business Intelligence [...]

New Mail.dat Specs Released

The USPS released May 21 the new Mail.dat comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! system using the Mail.dat file [...]