What is an official USPS delivery notification?

An official USPS delivery notification serves as a communication tool to inform customers that a mailpiece or package could not be delivered as intended. This notification typically includes information about the attempted delivery and may instruct the recipient on how to proceed, such as rescheduling delivery or picking up the item at a local facility. It is not simply a record of an unsuccessful delivery; rather, it is a formal notice that provides necessary information and guidance to the recipient.

The other options, while related to package deliveries, do not adequately describe what an official USPS delivery notification entails. Tracking receipts relate to the confirmation of a package being delivered rather than indicating any delivery status. Reminders for customers to pick up their mail do not represent an official notification regarding a delivery attempt. Lastly, notifications of package delays communicate issues in transit rather than confirming an unsuccessful delivery attempt.