From owner-freebsd-isp@FreeBSD.ORG Thu Feb 9 21:43:05 2006 Return-Path: X-Original-To: freebsd-isp@freebsd.org 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 21E8A16A422 for ; Thu, 9 Feb 2006 21:43:05 +0000 (GMT) (envelope-from gregp@domainit.com) Received: from ns3.domainit.com (ns3.domainit.com [216.195.78.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id B157543D45 for ; Thu, 9 Feb 2006 21:43:04 +0000 (GMT) (envelope-from gregp@domainit.com) Received: from [192.168.2.69] (ddsl-216-196-247-106.fuse.net [216.196.247.106]) by ns3.domainit.com (8.13.3/8.13.3) with ESMTP id k19Lh16P045916 for ; Thu, 9 Feb 2006 16:43:01 -0500 (EST) (envelope-from gregp@domainit.com) Message-ID: <43EBB765.6060709@domainit.com> Date: Thu, 09 Feb 2006 16:43:01 -0500 From: Gregory T Pelle User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051214) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-isp@freebsd.org X-Enigmail-Version: 0.93.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.88/1281/Wed Feb 8 14:59:33 2006 on ns3.domainit.com X-Virus-Status: Clean X-Spam-Status: No, score=0.1 required=5.0 tests=AWL autolearn=disabled version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on ns3.domainit.com Subject: Outbound mail filtering X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Feb 2006 21:43:05 -0000 What is the recommended setup for outbound spam filtering? I would like to be able to have all of my web hosting machines route all mail to a machine where the mail is virus scanned and spam checked. I would like to quarentine all mail that is considered spam (using Vipul's Razor and maybe DCC). I know I am not going to catch 100% of all spam, but I would like to catch most. I also plan on setting up firewall rules on the servers to block all outbound smtp traffic unless it is going to my filtering server. Any suggestions? Am I missing something? Greg.