Deltana Mail Slots Brass Tones

Maybe some kind of privacy cover like this ? Else, go with the privacy hood You can find

It is probably better to sense when the mailbox slot is opened, or when mail passes through the plane directly underneath the slot hood

mailbox with slot and lock This mail slot measures 3 58 inches by 12 12 inches This is a privacy accessory compatible with MS003, MS211, and MS212 mail slot models For use on both

mailslot or mail slot privacy accessory compatible with DTMS003, DTMS211, and DTMS212 mail slot models For use on both wood and metal doors Available in Polished Brass, Antique