From owner-freebsd-questions@FreeBSD.ORG Mon Oct 6 08:59:28 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 30F4116A4B3 for ; Mon, 6 Oct 2003 08:59:28 -0700 (PDT) Received: from sferics.mongueurs.net (sferics.mongueurs.net [81.80.147.197]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3863D43FEA for ; Mon, 6 Oct 2003 08:59:26 -0700 (PDT) (envelope-from david@landgren.net) Received: from landgren.net (81-80-147-206.bpinet.com [81.80.147.206]) by sferics.mongueurs.net (Postfix) with ESMTP id 7031EA97E for ; Mon, 6 Oct 2003 17:59:24 +0200 (CEST) Message-ID: <3F81915C.6040706@landgren.net> Date: Mon, 06 Oct 2003 17:59:24 +0200 From: David Landgren Organization: A thousand golden eyes are watching User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20030916 X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <3F803B1F.8070104@401.cx> <16256.18623.953821.581638@jerusalem.litteratus.org> In-Reply-To: <16256.18623.953821.581638@jerusalem.litteratus.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: FreeBSD & SPAM X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Oct 2003 15:59:28 -0000 X-List-Received-Date: Mon, 06 Oct 2003 15:59:28 -0000 Robert Huff wrote: > Roger 'Rocky' Vetterberg writes: > > >> SpamAssissin can hog a lot of CPU if you handle a lot of emails, >> so make sure you are running it in daemon mode, that helps quite >> a bit. > > > SpamAssassin is Perl, so of ourse it's a hog. I seem to > remember someone trying to write a version in C .... Well, they'll still be trying in 2007... BNy the time you've written the current SA in C, the current Perl version will be miles ahead. Programmer productivity is always more important than raw power. A 2.8MHz Pentium Xeon with 2Gb RAM doesn't cost all that much and offers phenomenal processing power. If that's not an option, an effective method for reducing SA load is to feed it less email :) I use Postfix and have some pretty extensive correlation checks to filter out spam (spoofed sender domains, garbage HELO strings, obsolete or spambait recipients, spammer hosts). Since the beginning of the month these low-overhad checks blocked 5313 messages of 19990 total. That's 5300 less that have to be dealt with SA. To learn more about blocking spam with Postfix, http://www.securitysage.com/guides/postfix_uce.html is a good place to start these days. David