From owner-freebsd-isp  Fri Nov  7 08:15:35 1997
Return-Path: <owner-freebsd-isp>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id IAA07419
          for isp-outgoing; Fri, 7 Nov 1997 08:15:35 -0800 (PST)
          (envelope-from owner-freebsd-isp)
Received: from whistle.com (s205m131.whistle.com [207.76.205.131])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id IAA07413
          for <freebsd-isp@FreeBSD.ORG>; Fri, 7 Nov 1997 08:15:29 -0800 (PST)
          (envelope-from archie@whistle.com)
Received: (from smap@localhost) by whistle.com (8.7.5/8.6.12) id IAA25230; Fri, 7 Nov 1997 08:14:50 -0800 (PST)
Received: from bubba.whistle.com(207.76.205.7) by whistle.com via smap (V1.3)
	id sma025226; Fri Nov  7 08:14:20 1997
Received: (from archie@localhost) by bubba.whistle.com (8.8.5/8.6.12) id IAA15001; Fri, 7 Nov 1997 08:14:20 -0800 (PST)
From: Archie Cobbs <archie@whistle.com>
Message-Id: <199711071614.IAA15001@bubba.whistle.com>
Subject: Re: Banning IPs from Sendmail
In-Reply-To: <Pine.BSF.3.95q.971107113544.21576A-100000@netrail.net> from "Jonathan A. Zdziarski" at "Nov 7, 97 11:37:23 am"
To: jonz@netrail.net (Jonathan A. Zdziarski)
Date: Fri, 7 Nov 1997 08:14:20 -0800 (PST)
Cc: freebsd-isp@FreeBSD.ORG
X-Mailer: ELM [version 2.4ME+ PL31 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-isp@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

Jonathan A. Zdziarski writes:
> What's the easiest way to deny local smtp delivery to specific IP
> addresses?  Some idiot keeps forging email from our staff to other staff.

ipfw add 100 reset tcp from <local-ip> to <remote-ip> 25 setup

-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com