4.4BSD/usr/src/contrib/mh-6.8/miscellany/netnews/login

setenv MAILPOSTER "~/bin/rnmail %h"
setenv MAILHEADER \
'To: %T\
Subject: %(%i=^$?:Re: %S\
Fcc: +CC\
Newsgroups: %n\
In-Reply-To: %i)\
%(%[references]!=^$?References\: %[references]\
)Organization: %o\
\
'