What happens if there is no forwarding address for periodicals?

If there is no forwarding address for periodicals, the correct procedure is to return the periodicals to the publisher. This is based on postal regulations which stipulate that if a recipient has moved and did not leave a forwarding address, the postal service cannot redirect the mail to a new location. Instead, the mail is sent back to the original sender, which in this case would be the publisher of the periodical. This process helps ensure that the publisher is aware that the recipient is no longer at the address on file and can take appropriate action, such as updating their mailing list.