Read the following passage and answer if the question is true or false.
Passage: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail.

Question: does there have to be a return address on an envelope?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
False
False, but necessary for the mail to be able to be returned if it becomes undeliverable.