From owner-freebsd-ipfw@FreeBSD.ORG  Mon Aug  9 00:53:55 2004
Return-Path: <owner-freebsd-ipfw@FreeBSD.ORG>
Delivered-To: freebsd-ipfw@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9979E16A4CE
	for <freebsd-ipfw@freebsd.org>; Mon,  9 Aug 2004 00:53:55 +0000 (GMT)
Received: from ns1.itga.com.au (ns1.itga.com.au [202.53.40.214])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 7690243D1D
	for <freebsd-ipfw@freebsd.org>; Mon,  9 Aug 2004 00:53:54 +0000 (GMT)
	(envelope-from gnb@itga.com.au)
Received: from lightning.itga.com.au (lightning.itga.com.au [192.168.71.20])
	by ns1.itga.com.au (8.12.9/8.12.9) with ESMTP id i790rmR5020128;
	Mon, 9 Aug 2004 10:53:48 +1000 (EST)
	(envelope-from gnb@itga.com.au)
Received: from lightning.itga.com.au (localhost [127.0.0.1])
	by lightning.itga.com.au (8.9.3/8.9.3) with ESMTP id KAA24990;
	Mon, 9 Aug 2004 10:53:47 +1000 (EST)
Message-Id: <200408090053.KAA24990@lightning.itga.com.au>
X-Mailer: exmh version 2.4 05/15/2001 with nmh-1.0.4
From: Gregory Bond <gnb@itga.com.au>
To: Forrest Aldrich <forrie@forrie.com>
In-reply-to: Your message of Fri, 06 Aug 2004 18:31:51 -0400.
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Mon, 09 Aug 2004 10:53:46 +1000
Sender: gnb@itga.com.au
cc: freebsd-ipfw@freebsd.org
Subject: Re: Blocking SMTP traffic based upon RBL.... 
X-BeenThere: freebsd-ipfw@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: IPFW Technical Discussions <freebsd-ipfw.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ipfw>
List-Post: <mailto:freebsd-ipfw@freebsd.org>
List-Help: <mailto:freebsd-ipfw-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 09 Aug 2004 00:53:55 -0000

The IPFW rules are really not the place for this.  

Your MTA will have built-in support for RBLs which is a much more appropriate
place.

For sendmail, see the "FEATURE(`dnsbl'...)", well, feature.