How to Burglar-Proof Your Mail Slot

Stainless Steel Door Mail Slot With Extra Large Mail Catcher And door mail slot blocker Yelsky Mail Slot Catcher, PU Leather, Alternative to Letterbox Cage, Mail Slot Catcher for Small Parcels and Letters, Easy to Install, Transparent Front, door slot lock I installed a mail slot for a neighbor she had me install one of the vision block ones 1 foot from the ground, to make it completely impossible to see anything

door letter slot Installation instructions for an Elite Model DraftDodger™ Insulated Mail Slot