BoxKit: PO Box Blocker Pro

BoxKit helps merchants avoid shipping problems caused by undeliverable addresses. It automatically detects PO Box, military APO/FPO, and freight-forwarder addresses as customers enter them at checkout or cart, then blocks the order or shows a message asking for a valid street address. This reduces failed deliveries and carrier surcharges. Merchants can customize the warning message, choose which address types to restrict, and review blocked orders from a simple dashboard.