Can I put a wall slot for my mail on the side wall of my house?

DIY Modern Wall Mount Coat Rack with Secret Mail Slot mail slot for wall Three style options are available on the residential mail slots from These deluxe style mail slots are USPS approved mailslot or mail slot Through The Wall Mail Slot, Two Piece Deposit Chute Drop for Documents, Mail, Checks, Payments

mail slot in door Ideas for sealing up a drafty through-wall mail slot It doesn't seal tightly around the slot flap, so it's very drafty all winter and might be