From owner-freebsd-questions@FreeBSD.ORG Sat Apr 21 08:34:58 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id CBDCF16A401 for ; Sat, 21 Apr 2007 08:34:58 +0000 (UTC) (envelope-from jdow@earthlink.net) Received: from elasmtp-junco.atl.sa.earthlink.net (elasmtp-junco.atl.sa.earthlink.net [209.86.89.63]) by mx1.freebsd.org (Postfix) with ESMTP id 8FC8D13C487 for ; Sat, 21 Apr 2007 08:34:58 +0000 (UTC) (envelope-from jdow@earthlink.net) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=cqT/W40PUQ8c9Pa0fg4P/c/Y8m6CuVuPwx3tZLFtaOkgVRtWpaKkbuGlU1Ur0ssM; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [208.127.11.96] (helo=wednesday) by elasmtp-junco.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1HfAnY-0001G4-8F for freebsd-questions@freebsd.org; Sat, 21 Apr 2007 04:18:24 -0400 Message-ID: <03a301c783ed$a445bcb0$0225a8c0@wednesday> From: "jdow" To: References: <002001c7836b$06534bd0$6501a8c0@GRANT> Date: Sat, 21 Apr 2007 01:18:28 -0700 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-ELNK-Trace: bb89ecdb26a8f9f24d2b10475b571120f7c28acc6b0a00c6a0116ba6ce258f110904316b1893b109350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 208.127.11.96 Subject: Re: Anti Spam X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Apr 2007 08:34:58 -0000 From: "Grant Peel" Hi all, I am posting this question here because I know there are alot of ISPs using FreeBSD (including me) and am hoping to get feedback, either directly to me or to the list. We are wrestling (as I am sure many are), with spam. Up until now we have been employing Spamassassin locally and using some 3rd party Anti-Spam servervices that are getting less and less reliable as the weeks go by. We are considering two hardware solutions, Easyantispam and Barracuda. Barracuda is very expensive, so the most likely candidate is Easyantispam. Does anyone out there have thought on either or both of these? Usability? Reliability? Total Cost of ownership? Integration issues? Any thoughts will be appreciated, -Grant For what it is worth I have not heard any good words about Barracuda on the SA mailing list. I have encountered a considerable number of people who agree with Barracuda's detractors. One of the good tools for SpamAssassin is the new FuzzyOCR plugin - IF you can spare the CPU cycles. Per user Bayes filtering and rules will always work better chiefly because of the goose/gander problem - one person's spam is often another person's ham. Greylisting is a great tool for ISPs as long as you use a tool that "learns" which addresses are real and which are not. In this regard carefully chosen block lists can also be a great help. When applied, either in SA or in the MTA, use a scoring system with the block lists so that one agressive list will not suddenly irritate customers with lost important messages. {^_^} Joanne