USPS To Test “Plus One” Addressed Advertising Card

The USPS plans to launch a market test of an experimental product called Plus One on October 1, 2019.

Plus One is an addressed advertising card that may be mailed as an add-on piece with a USPS Marketing Mail Letters “marriage mail” envelope containing multiple advertising pieces.

Marriage mail is a service provided by third-party mail service providers who combine advertisements from multiple businesses into a single mailpiece, thereby significantly reducing each business’s per-address mailing expense … (click to read more)