There are two "flavors" of the EDDM program, EDDM Retail and EDDM BMEU. Both offer simple addressing and great postage rates, but they differ slightly in scope.
Every Door Direct Mail Retail
does not require a mailing permit must be dropped at each individual post office serving each zip code has a limitation of 5,000 mail pieces per day
Every Door Direct Mail BMEU
does require a mailing permit must be dropped at the BMEU, not at each local post office has no quantity limitation per day