What is the significance of using the correct postage?

Using the correct postage is significant primarily because it prevents delays or the return of mail. When postage is insufficient or incorrect, the postal service may not deliver the mail as intended, resulting in it being held up for additional postage payment or even returned to the sender. Proper postage ensures that the mailpiece is processed correctly through the postal system and reaches its destination promptly.

While other aspects like delivery speed and sorting can be influenced by various factors, ensuring the right amount of postage is paid is essential to uphold the flow of operations within the postal service. Incorrect postage does not only risk delays; in some cases where insufficient postage is identified, it can lead to entirely non-delivered items, which would certainly impact the sender's intentions for communication and services.