From owner-freebsd-security@FreeBSD.ORG Thu May 13 15:01:13 2004 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1B4B316A4CE for ; Thu, 13 May 2004 15:01:13 -0700 (PDT) Received: from cybhqfrwd02.office.outpost.com (near.outpost.com [69.44.121.165]) by mx1.FreeBSD.org (Postfix) with SMTP id 176FB43D5A for ; Thu, 13 May 2004 15:01:12 -0700 (PDT) (envelope-from PBaker@outpost.com) Received: (qmail 6627 invoked from network); 13 May 2004 20:38:28 -0000 Received: from cybhqmsx02.office.outpost.com (10.2.6.93) by cybhqfrwd02.office.outpost.com with SMTP; 13 May 2004 20:38:28 -0000 Received: by cybhqmsx02.office.outpost.com with Internet Mail Service (5.5.2650.21) id ; Thu, 13 May 2004 17:50:01 -0400 Message-ID: <777BCABEE522D5119E3E00508B6CA0B802E9AA95@CYBHQMSX05> From: Patrick Baker To: "'freebsd-security@freebsd.org'" Date: Thu, 13 May 2004 18:01:11 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: Re: How do fix a good solution against spam.. X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 May 2004 22:01:13 -0000 I use postfix with mysql which forwards mail to a content filter ( amavisd-new ) which does the virus scanning and Spam detection. Using Spam assassin I have DCC, Razor, and Bayesian Learning. All mail is forwarded through unless its a virus --> onto Cyrus, then I have Sieve read the mail headers to filter all Spam into a junk folder. If Spam still comes through I just have all my customers forward the mail to report-spam@domain.tld . A cron job runs at 6am every morning to learn from these Spam emails and put them into the Bayesian database. I only use one RBL which is relays.ordb.org, I don't like RBL's really because they have some pretty idiotic polices not to mention they're so secretive. Spam really isn't a threat - its more annoying then anything else - some customers like to read through it sometimes - I cant stop them if they want to. Yet every two days, all mail that's in the junk folder is automatically purged. Regards, Patrick