What does "UTF" stand for in postal terminology?

In postal terminology, "UTF" stands for "Unable to Forward." This term is used when the postal service cannot send an item to its intended recipient because they have either moved without leaving a forwarding address or the address is otherwise undeliverable. When a mail carrier encounters a situation where a piece of mail cannot be delivered to the designated address and cannot be redirected, they categorize it under UTF.

Understanding this term is crucial for postal workers, as it impacts the handling of mail and customer service decisions. Correctly identifying situations classified as UTF helps ensure proper procedures are followed, such as returning undeliverable mail to the sender or taking additional steps to resolve delivery issues.