Here are a few guidelines to follow when designing a postcard or envelope to be mailed through the USPS.
Direct mail relies on USPS postcard regulations and requirements for proper automated mailing and delivery. Learn more here with Modern Postcard!
To register for PostalOne! portal: go to http://www.usps.com/postalone . Customer Care Center: 800-522-9085, postalone@email.usps.gov. Window Book's mailing software, DAT-MAIL™, supports USPS PostalOne! and FAST drop ship appointments. Postcard—A privately printed mailing card. Prec...