Do they make entry doors with mail box slots?

BOTA is a mail slot insulator that is designed to Block Out The Air and insulate your mail slot but keep it completely functional

Permanent insulation will fill the slot and make it unusable, but will do a great job of insulating your door Or you can install a new highly insulated mail

slot pull on cruise ship Tools required for installation of an Elite Model DraftDodger™ Insulated Mail Slot

secrets of the amazon slot mail slot, talk to the contractor about ways to insulate the area Some mail slots come pre-insulated or you can add your own insulation or