From owner-freebsd-hackers Mon Sep 8 07:54:54 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA05319 for hackers-outgoing; Mon, 8 Sep 1997 07:54:54 -0700 (PDT) Received: (from jmb@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA05309; Mon, 8 Sep 1997 07:54:50 -0700 (PDT) From: "Jonathan M. Bresler" Message-Id: <199709081454.HAA05309@hub.freebsd.org> Subject: Re: spam and the FreeBSD mailing lists To: ahd@kew.com (Drew Derbyshire) Date: Mon, 8 Sep 1997 07:54:49 -0700 (PDT) Cc: tlambert@primenet.com, hackers In-Reply-To: <34137978.288AD02@kew.com> from "Drew Derbyshire" at Sep 8, 97 00:05:12 am X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Drew Derbyshire wrote: > > Terry Lambert wrote: > > > > > > there is *not* reasone that i know of that a > > > > "mail from:" address must be resolvable. > > > > > > Yes, there is. The address in the SMTP "MAIL FROM" line is used for > > > bounce messages by sendmail. > > > > You are forgetting "MAIL FROM:<>", which is perfectly valid. > > I was, but it's a document special case, but ignorable for my comments > as it's a "valid" address, which is to say the bit bucket. for me, as a person running the mail lists, <> is a very important address. i need to know when mail bounces. <> is often used to prevent a bounce message from generating a another bounce message. i need to get those messages so that i can cull dead addresses from the mailing lists. jmb