From owner-freebsd-isp@FreeBSD.ORG Fri Sep 12 02:03:14 2003 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 0FC7016A4BF for ; Fri, 12 Sep 2003 02:03:14 -0700 (PDT) Received: from smtp.volant.org (gate.volant.org [207.111.218.246]) by mx1.FreeBSD.org (Postfix) with ESMTP id E75C643F3F for ; Fri, 12 Sep 2003 02:03:12 -0700 (PDT) (envelope-from patl+freebsd@volant.org) Received: from 64-144-229-193.client.dsl.net ([64.144.229.193] helo=[192.168.0.13]) by smtp.volant.org with asmtp (TLSv1:AES256-SHA:256) (Exim 4.22) id 19xjpe-000KsU-0c; Fri, 12 Sep 2003 02:03:10 -0700 Date: Fri, 12 Sep 2003 02:03:07 -0700 From: Pat Lashley To: Marcus Reid , James Godwin Message-ID: <3374345408.1063357387@mccaffrey.phoenix.volant.org> In-Reply-To: <20030912084659.GA53607@blazingdot.com> References: <1062767877.8cbd42c952096@mail.encontacto.net> <20030912084659.GA53607@blazingdot.com> X-Mailer: Mulberry/3.1.0b6 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Scan-Signature: 0db5de692798f57a946dd77142aa123974f89bbf X-Spam-Score: 1.9 (+) X-Spam-Score-Int: 19 X-Spam-Report: 1.9/5.0 This mail has matched the spam-filter tests listed below. See http://spamassassin.org/tag/ for details about the specific tests reported. In general, the higher the number of total points, the more likely that it actually is spam. (The 'required' number of points listed below is the arbitrary number above which the message is normally considered spam.) Content analysis details: (1.90 points total, 5 required)header IN_REP_TO (-0.5 points) Has a In-Reply-To header quoted email textrelays.osirusoft.com [RBL check: found 193.229.144.64.relays.osirusoft.com.] REPLY_WITH_QUOTES (-0.5 points) Reply with quoted text AWL (3.3 points) AWL: Auto-whitelist adjustment cc: freebsd-isp@freebsd.org Subject: Re: Anti Virus for mail server 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: Fri, 12 Sep 2003 09:03:14 -0000 --On Friday, September 12, 2003 01:46:59 -0700 Marcus Reid wrote: > On Mon, Sep 08, 2003 at 05:15:21PM +0200, James Godwin wrote: >> Hi, >> >> There has been no need for Anti Virus on our mail servers as most of our >> clients are Mac users and our windows clients have anti virus installed >> on their machines. I've got a mostly FreeBSD/Solaris/MacOS X/Linux shop; and found it was worth putting in virus checking just so we wouldn't have to wade through the piles of sobig.f crap in our mailboxes. > I've spent a lot of time with qmail/qmail-scanner, sendmail/mailscanner, > and postfix/amavisd-new. Of these, here are my personal findings: > > qmail: ... > > sendmail: ... > > postfix: ... This list really can't be considered to be anywhere near complete without including Exim. Particularly the latest versions with the exiscan-acl patches. Those not only allow you to integrate virus scanning and anti- spam features into a powerful, flexible ACL; those ACLs let you reject the offending message while the SMTP connection is still open. (So no undeliverable bounce messages clogging up your outgoing queues.) (The FreeBSD mail/exim port automatically includes the exiscan-acl patches.) Exim is easy to configure, -very- flexible, and capable of handling fairly large traffic levels if required. I can also heartily recommend clamav as a virus scanner. (Also installable via a port. As is SpamAssassin.) -Pat