MailGuard locking mailbox is a mailbox designed to eliminate the threat of stolen mail by keeping your mail private and secure, allowing access only to those with a key. MailGuard locking mailbox protects your mail while you are away. The MailGuard locking mailbox serves as your own PO Box that you can access anytime at home or work. A locking mailbox for both home and business use, MailGuard locking mailbox provides enough space to accommodate mail from numerous days or weeks of delivery.