Details.
Participants receive a discount for sending follow-up mailings that repeatedly deliver qualifying USPS Marketing Mail letters and flats to the same address. Follow-up mailings must complement or build upon, but not duplicate, the initial mailing. There is no discount on the initial mailing, but all consecutive mailings receive 5%. The promotion period is April 1, 2026 through December 31, 2026, registration is February 15, 2026 through December 31, 2026, and eligible mail includes Marketing Mail letters and flats plus Nonprofit Marketing Mail letters and flats.