Mailbox wall mount vs Mail Slot in door

Mailbox wall mount vs Mail Slot in door door letter slot In the UK, in coming mail addressed to you at this address is posted through the slot in your door If you wish to post an out going letter, you door mail slot cover Stainless Steel Door Mail Slot , Letter Box Plate Compatible With Any Door Type, 13 in W x 4 in H - -

door mail slot cover jigsaw is fine, if its a upvc door it will probably be a plastic skin panel with polystyrene inbetween and maybe a sheet of plywood or mdf to

door slot mailbox This DraftGuard insulated letter slot eliminates drafts and dust and is suitable for metal, wood or PVC doors up to 1 34 thick; easy to install  Bronze “Letters” inscribed door mounted mail slot with back