The RETURN utility returns a message to the message's originator.
    The returned message is in two parts. The first part explains
    the reason why the message is being returned; the text of the
    reason is contained in the file RETURN_BOUNCED.TXT file located
    in the PMDF language-specific directory. The second part of the
    returned message contains the original message itself. Postmaster
    privileges (write access to the PMDF channel queues) are required
    to use this utility.