What can I do if my mailpiece hasn't been delivered?
First, please check the delivery standard for the mail class of your domestic item. You can find out the mail class by entering the USPS® Tracking number and looking up “Product Information.” Then compare your mail class and progress to what is found in the Mail Delivery Standards chart located in Delayed mail and packages?. The delivery standard chart indicates when your item should be delivered by and when we suggest you could email or call Customer Service regarding your item. Also, if your item has a status of “Alert,” a delay could have occurred because of weather-related and other natural disasters or events. In this case, please check USPS Service Alerts first.