It’s called Every Door Direct Mail (EDDM) Retail and it’s a new way to think about marketing your product, service, or idea. Instead of mailing to specific names and addresses, the United States Postal Service’s EDDM program allows you to have your mailpieces delivered to individual neighborhoods (by carrier routes).You pinpoint your audience and the USPS delivers directly to every mailbox on the route. You can even control when it mails, by when you drop it off at the designated post office (optional mail-it-yourself option).