From owner-freebsd-questions@FreeBSD.ORG Thu Dec 13 02:12:55 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5E58216A469 for ; Thu, 13 Dec 2007 02:12:55 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from mail-out4.apple.com (mail-out4.apple.com [17.254.13.23]) by mx1.freebsd.org (Postfix) with ESMTP id 58C1713C4F2 for ; Thu, 13 Dec 2007 02:12:55 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from relay11.apple.com (relay11.apple.com [17.128.113.48]) by mail-out4.apple.com (Postfix) with ESMTP id E5E9A1BBFFA8; Wed, 12 Dec 2007 18:12:54 -0800 (PST) Received: from relay11.apple.com (unknown [127.0.0.1]) by relay11.apple.com (Symantec Mail Security) with ESMTP id CD35328085; Wed, 12 Dec 2007 18:12:54 -0800 (PST) X-AuditID: 11807130-a6647bb000004fb9-a0-47609525015b Received: from cswiger1.apple.com (cswiger1.apple.com [17.214.13.96]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by relay11.apple.com (Apple SCV relay) with ESMTP id E063D28082; Wed, 12 Dec 2007 18:12:53 -0800 (PST) Message-Id: From: Chuck Swiger To: Sten Daniel Soersdal In-Reply-To: <476086E2.5030402@gmail.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v915) Date: Wed, 12 Dec 2007 18:12:53 -0800 References: <476086E2.5030402@gmail.com> X-Mailer: Apple Mail (2.915) X-Brightmail-Tracker: AAAAAA== Cc: freebsd-questions Subject: Re: (postfix) SPAM filter? 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: Thu, 13 Dec 2007 02:12:55 -0000 On Dec 12, 2007, at 5:12 PM, Sten Daniel Soersdal wrote: > We have a need for a relatively painless anti-spam solution that > would reduce the amount of incoming spam (via postfix mail router). > The problem is that i have little knowledge on what this actually > means. Googling reveals a whole "universe" of interesting ways but > what should i pursue? > The things that are important to me is: > > * Once it is setup then it would require no additional maintenance. > * Potential spam messages are marked with a special header that can > be filtered on user discretion on their local mail client software. Install the following: /usr/ports/mail/postfix-policyd-weight /usr/ports/mail/postgrey /usr/ports/mail/p5-Mail-SpamAssassin /usr/ports/security/amavisd-new /usr/ports/security/clamav policyd + postgrey provide rather good, very lightweight initial filtering of email without taking up a lot of memory or resources, and remove a lot of workload, so that the Amavisd+ClamAV+SA combination only has to do virus-scanning and SpamAssassin's expensive Bayesian word-mangling on emails which seem to be legit. Regards, -- -Chuck