• Shipment address number, street, box number, route number, or geographical section of city or city and state is wrong or missing.
• The recipient moved from the shipment address and left no forwarding address.
• The recipient moved and left a forwarding address but the forwarding address has expired.
• The shipment was not picked up after notice(s) left.
• Delivery was attempted but the recipient was not known at the address.
• Delivery was attempted but the recipient refused delivery, which is common for DDU shipments.
• The house, apartment, office, or building of the address is vacant.
• The recipient is deceased.