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 [...]
New specifications
New Mail.dat Specs From USPS
The Postal Service released the new Mail.dat Technical Specifications publication effective March 17, 2017. The 375-page document details steps for exchanging electronic data [...]