Ideas for sealing up a drafty through-wall mail slot

mail slot for apartment 3B Climbing to the third floor, Littlemore rang the bell Mrs Cross stood behind him “Who it is?” called a Spanish-accented voice

mail from outside slot and shutter On the inside of the house only the entrance door to the box is visible , the box itself being concealed in the wall

mailbox door slot MAILBOX LETTER SLOT swinging door wall mounted cast iron neo classical antique vintage old mail postal · Item details · Delivery and return policies · 7,151

mailbox for door slot This Large Mail Slot with Interior Frame features a spring-loaded flap that opens outside, with an accompanying brass frame on the interior side