From owner-freebsd-questions@freebsd.org Thu Jan 12 21:58:18 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 504A5CADA2E for ; Thu, 12 Jan 2017 21:58:18 +0000 (UTC) (envelope-from rcarter@pinyon.org) Received: from h2.pinyon.org (h2.pinyon.org [65.101.20.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1D51811FB for ; Thu, 12 Jan 2017 21:58:17 +0000 (UTC) (envelope-from rcarter@pinyon.org) Received: by h2.pinyon.org (Postfix, from userid 58) id 7CC1E1008D; Thu, 12 Jan 2017 14:58:11 -0700 (MST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=pinyon.org; s=DKIM; t=1484258291; bh=lCxJD31VSzrJCKMChg/NdgE0SsHQHoX6pF+fGhOq73s=; h=Subject:To:References:From:Date:In-Reply-To; b=Vnduw84llL9pCLT8qDV0Z9NkYZY/7VD7ouJ70SDcTcVEH989iucHWEZll69YeSGY2 AJubNpop9BbsppQ1Fp8dpF62unaWfmALpYxWkyeGz/l7OhPbKryyxw2sEzCF11Wfaf 9GpDqp0H3lzGlBNoyG5qA6RY1yxGOwpDmZgdZUSs= X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on h2.pinyon.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham autolearn_force=no version=3.4.1 Received: from [10.0.10.15] (h1.pinyon.org [65.101.20.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by h2.pinyon.org (Postfix) with ESMTPSA id 7E7621007D for ; Thu, 12 Jan 2017 14:58:10 -0700 (MST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=pinyon.org; s=DKIM; t=1484258290; bh=lCxJD31VSzrJCKMChg/NdgE0SsHQHoX6pF+fGhOq73s=; h=Subject:To:References:From:Date:In-Reply-To; b=CqwAtVatwvA8yxUCgPOzdBudUAi+sLI3nX/RZVp/0Lf++INJvvC/TK9jCv8w35oOy y17AjNRyo4e3dKCTqE6Ags3zUKY1MPNN1u32O+jHxSk4YIkhRJIHlaY2S/Uskf76Xl inKexSla+HhJcY1boo0qLjTC4Mroj2qeNGwoq4Lc= Subject: Re: spamassassin not lethal anymore To: freebsd-questions@freebsd.org References: <2463a238-e10f-e81d-cab1-5a7eaf774590@pinyon.org> <20170111210507.2dc39818c6e9d439abb21ee6@sohara.org> <1598f8c4238.279b.0b331fcf0b21179f1640bd439e3f4a1e@tundraware.com> <41546.128.135.52.6.1484176714.squirrel@cosmo.uchicago.edu> From: "Russell L. Carter" Message-ID: <62a3cbd1-e4c2-3829-208d-7e859d81d9e7@pinyon.org> Date: Thu, 12 Jan 2017 14:58:10 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <41546.128.135.52.6.1484176714.squirrel@cosmo.uchicago.edu> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jan 2017 21:58:18 -0000 On 01/11/17 16:18, Valeri Galtsev wrote: > > On Wed, January 11, 2017 4:00 pm, Tim Daneliuk wrote: >> Milter greylist also helps considerably >> > > I'm usually using sqlgrey for greylisting. In addition to that I'm using > amavisd (that harnesses spamassassin, clamav (and/or other anti-viruses, - > yes, I have windows people receiving their mail on our UNIX servers), and > variety of distributed spam signature databases. Also, in postfix > configuration (that we use as MTA) we add some RBLs: > > reject_rbl_client zen.spamhaus.org, > reject_rbl_client bl.spamcop.net, > reject_rbl_client cbl.abuseat.org, > > I hope, this helps. I had hoped I wouldn't need to do a deep dive on state-of-the-art spam killing, but it's 2017 and the game has gotten tougher. Thanks for these suggestions. I'm implementing greylisting, pyzor, razor, and the above client_recipient_restrictions. dcc I don't quite understand yet. I think I'll phase this stuff in, with greylisting first, and see what happens to the spam flow for each step. I am a little wary of putting even more chunks of perl and python into the critical path. Thanks a lot for the help, everyone. Russell (I just had a sad laugh recalling that I used to set up a mail server in 1995 using sendmail... and nothing else but exmh as the client) > Valeri > > >> >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to >> "freebsd-questions-unsubscribe@freebsd.org" >> > > > ++++++++++++++++++++++++++++++++++++++++ > Valeri Galtsev > Sr System Administrator > Department of Astronomy and Astrophysics > Kavli Institute for Cosmological Physics > University of Chicago > Phone: 773-702-4247 > ++++++++++++++++++++++++++++++++++++++++ > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >