On Mon, 11 Feb 1991 11:46:57 GMT Alan Thew <[log in to unmask]> said:
>He was  in fact re-posting  something and used a  Resent-subject: field.
>This field was totally ignored by LISTSERV and indeed does not appear in
>the notebook from the site which gateways this list to USENET.
>
>However, while the  USENET header fields again use  the original subject
>field,  the Resent-Subject:  field is  at  least present  in the  header
>fields. I'm puzzled  as to why the field is  omitted completely from the
>LISTSERV notebook.
 
Simply  because there  is no  such  field defined  in RFC822,  ie if  you
forward a message to someone, the subject stays the same (unless you edit
the 'Subject:' field).
 
  Eric