Library /sys$common/syshlp/mailhelp.hlb ANSWER, Qualifiers, /PERSONAL_NAME  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /PERSONAL_NAME=name
       /NOPERSONAL_NAME

    Specifies a personal name to be used when answering a message.
    A personal name is a field of text that is appended to the end
    of the From: field of mail messages you send. You can fill this
    field with your full name or any other information.

    The /PERSONAL NAME qualifier overrides the default personal name
    specified with the SET PERSONAL_NAME command for this message
    only. The /NOPERSONAL_NAME qualifier sends a message with a null
    personal name field.