/FROM=address

    This qualifier may be used to specify the contents of the From:
    header line. If this qualifier is not specified and the PMDF_
    FROM logical is not defined, then a From: header line will be
    constructed from the username of the user invoking PMDF MAIL
    and the local host name. Note that even if a From: address is
    provided, the invoking user's address will appear in a Sender:
    header line.

    The /FROM qualifier has no effect on interactive PMDF MAIL
    sessions.