From owner-freebsd-isp@FreeBSD.ORG Mon Feb 21 08:42:02 2005 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0225316A4CE for ; Mon, 21 Feb 2005 08:42:02 +0000 (GMT) Received: from post.heppke-datensysteme.de (urmel.heppke.de [80.237.203.107]) by mx1.FreeBSD.org (Postfix) with ESMTP id A549B43D31 for ; Mon, 21 Feb 2005 08:42:00 +0000 (GMT) (envelope-from freebsd-ml@dettmering.org) Received: from localhost (localhost.heppke.de [127.0.0.1]) by post.heppke-datensysteme.de (Postfix) with ESMTP id C25703B339 for ; Mon, 21 Feb 2005 09:41:58 +0100 (CET) Received: from post.heppke-datensysteme.de ([127.0.0.1])port 10024) with LMTP id 27193-01-7 for ; Mon, 21 Feb 2005 09:41:58 +0100 (CET) Received: from merlin.dettmering.org (pD954B8AD.dip.t-dialin.net [217.84.184.173]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by post.heppke-datensysteme.de (Postfix) with ESMTP id 7D0F83B336 for ; Mon, 21 Feb 2005 09:41:57 +0100 (CET) Received: from localhost (localhost.dettmering.org [127.0.0.1]) by merlin.dettmering.org (Postfix) with ESMTP id 8CCC41C611B2 for ; Mon, 21 Feb 2005 09:44:04 +0100 (CET) Received: from merlin.dettmering.org ([127.0.0.1]) by localhost (merlin.dettmering.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 04291-08-3 for ; Mon, 21 Feb 2005 09:44:02 +0100 (CET) Received: from [192.168.66.7] (frodo.dettmering.org [192.168.66.7]) by merlin.dettmering.org (Postfix) with ESMTP id 318571C61163 for ; Mon, 21 Feb 2005 09:44:02 +0100 (CET) Message-ID: <42199F51.6020604@dettmering.org> Date: Mon, 21 Feb 2005 09:44:01 +0100 From: Dirk Dettmering User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20040910 X-Accept-Language: de, en, en-us MIME-Version: 1.0 To: freebsd-isp@freebsd.org References: <4219551F.9010808@pyramus.com> <20050221043613.GA21273@wjv.com> In-Reply-To: <20050221043613.GA21273@wjv.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at dettmering.org X-Virus-Scanned: by amavisd-new at heppke-datensysteme.de Subject: Re: Why the mail error for domains I don't host? X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Feb 2005 08:42:02 -0000 Bill Vermillion wrote: > I won't call myself unskilled - but I have one domain that > in desperation I set the MX record to localhost. > > I was running about 300,000 spam messages PER DAY to that domain. > > Removing the MX record entirely cut me down to 25,000 to 50,000 > per day - as people would send the spam to the IP of the > web server. [both web and MX are on that one machine for a few > domains]. > > I know it's not supposed to be done, but I did this in > self-defense. [snip] > Sorry if this site is giving you problems, but I'm open to any > suggestions that will keep the spam away and the 127.0.0.1 > is the only one I could come up with. Why don't you use one of the RFC 1918 adresses (10.X.X.X, 172.16.X.X, 192.168.X.X, 169.254.1.X) instead of 127.0.0.1? The chance somebody is using the same range out of those adresses in his own network is relativly low. Best wishes Dirk