Every Door Direct Mail (or EDDM) saves you money on postage while targeting more addresses than traditional direct mail. Since postage costs around $.175 per piece, you get to spend less (compared to traditional postcard mailing) while spreading the word about your business. All of our EDDM postcard sizes are covered under the USPS Every Door Direct Mail rates. Be sure to avoid rounded corners. Also, we don’t recommend using gloss or UV finish on your postcard’s mailing panels if you wish to avail of EDDM.