Hold the front face of the mail slot onto the exterior. The material and quality of the door will determine its cost. HM702 Storm Door stormdoor entryway hmidoors We get a pile of magazines and catalogs delivered every day and couldn’t find a box large enough, so we installed a mail slot in the front door. How to install mail slot in glass door . Ecogra is an international testing agency that accredits and regulates the world of online gambling. Mail slot for glass doors (duronodic) part number. Durabox through the wall mail slot two piece deposit chute drop for documents, mail, checks, payments (black) Drill pilot holes on the screw hole marks. Used in conjunction with your existing exterior mail slot door. Hold the mail slot at the desired height on the interior side of the door, and make a small pencil mark along the bottom of the mail slot. An exterior mail slot cover (or lid) covers the mail slot so that the home remains insulated against the elements. Can yo...