USPS Mailing Services team provides strategic incentives, offering various benefits and advantages to businesses and individuals.
New! Mail Incentives | PostalPro (usps.com)
USPS Mailing Promotions seek to increase engagement and response rates for Mailers by leveraging high value mailpieces.
This is a ZIP file of the XML schemas for the 4.1.0 release of the Informed Delivery API.