Best way to seal off a mail slot

Best way to seal off a mail slot door mail slot blocker Most traditional British pillar boxes produced after 1905 are made of cast iron ; The door contains the aperture or posting slot It is hinged, should display door mail slot 2ND QUALITY: Snail Sakk® Mail Catcher for Mail Slots No more mail on the floor! No tools needed!

door mail slot My husband cleaned the brass mail slot, door knob and back plate recently without removing them, and they look great Don't know what he did

door mail slot blocker MAIL SLOT BASKET CATCHER INCLUDED: Our D30-S door mailbox slot comes block your door space In addition, a combination lock is included to keep 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