How to mail a letter when you just have a mail slot

Add a beautiful touch to your home while discouraging mail theft by installing a classic mail slot Mail slots with a spring-loaded cover prevent drafts,

There is a metal flap on the outside of the wall and nothing on the inside I can even see daylight in the corners of the slot I'm tempted to cover the mail

mailbox drop slot near me Letter Box Plates, 10 x 3 Designed for use on exposed doors to prevent wind from forcing rain and snow through the slot Very large opening will

mail slot cover plate Arts and Crafts Single GFI Outlet Cover Plate Arts and Crafts GFI Outlet Cover Plate In Oil-Rubbed Bronze $ Arts