The USPS Missing Mail App is a free, 24/7 service available to all classes of mail that do not arrive at their destination on time. Any mail that has gone missing, whether insured or not can be searched on the app on USPS.com.
This feautre includes packages and pieces of mail that were deemed undeliverable, lost or delayed.
Customers may enter details and upload photos of their missing item to assist the Mail Recovery Center with identification. Learn more at USPS.com.
How can I track my USPS shipments?
How do I know if my package has arrived or is late?
How to: Add a tracking number to drop shipped orders
How to: Export my tracking numbers to a report
How to: Get a refund for a late Priority Mail Express delivery
What confirmation options are available with each Carrier and Service?