Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!think!ames!sdcsvax!ucsdhub!jack!nusdhub!rwhite From: rwhite@nusdhub.UUCP (Robert C. White Jr.) Newsgroups: comp.mail.headers,comp.sources.wanted Subject: Mail Headers Definitions for YACC Message-ID: <279@nusdhub.UUCP> Date: Fri, 27-Nov-87 20:39:53 EST Article-I.D.: nusdhub.279 Posted: Fri Nov 27 20:39:53 1987 Date-Received: Mon, 30-Nov-87 01:16:07 EST Organization: National University, San Diego Lines: 17 Xref: mnetor comp.mail.headers:223 comp.sources.wanted:2939 Hi, I need the yacc and lex definitions for mail headers. I don't know enough to ask correctly [by number] for what I want. If the yacc and lex grammers are not available, but there is a source, or someone can tell me where [provide me with] the definitions in plain text, I would be grateful. Basically I need to _prevent_ some machines on our hub from mailing to others. The routing is not so much the point, but I need to be able to burst the headers destined for rmail, and preform surgery on some. The real issue is that we have some destinations which _do_ wnat mail, but only from certain sources, so I need to become a guardian for these sites. Rob.