How to remove embedded mailbox in wall?

Please note: For wall mount mailboxes, the manufacturer cannot anticipate the surface onto which the mailbox will be installed; therefore, mounting hardware is

This through the wall mail slot is designed to accept standard mail, rent payments, or small parcels It can be used as a payment drop slot for rental offices

mailbox door slot The Mail Slot features an 11 in wide opening and spring-loaded front plate with an interlocking flap for tight closure It can be easily installed as a

mailbox drop slot Mailboxes MSS003AM Mail Slot Sleeve Accessory, Metal US Store ARCHITECTURAL MAILBOXES Wall Mounted cast Iron neo Classical Antique Vintage Old Mail Postal