From owner-freebsd-questions@FreeBSD.ORG Wed Dec 19 00:07:02 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 E324C16A420 for ; Wed, 19 Dec 2007 00:07:02 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from mail-out3.apple.com (mail-out3.apple.com [17.254.13.22]) by mx1.freebsd.org (Postfix) with ESMTP id B9F2413C45B for ; Wed, 19 Dec 2007 00:07:02 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from relay14.apple.com (relay14.apple.com [17.128.113.52]) by mail-out3.apple.com (Postfix) with ESMTP id B73CA1B9825B; Tue, 18 Dec 2007 16:07:02 -0800 (PST) Received: from relay14.apple.com (unknown [127.0.0.1]) by relay14.apple.com (Symantec Mail Security) with ESMTP id 9AEA72808C; Tue, 18 Dec 2007 16:07:02 -0800 (PST) X-AuditID: 11807134-aa199bb00000595e-47-476860a676b7 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 relay14.apple.com (Apple SCV relay) with ESMTP id 1312C28083; Tue, 18 Dec 2007 16:07:02 -0800 (PST) Message-Id: <66EF345A-B011-4344-876A-758B9C1FE5B5@mac.com> From: Chuck Swiger To: Eric Crist In-Reply-To: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v915) Date: Tue, 18 Dec 2007 16:07:01 -0800 References: <20071216185050.GB26535@brahma.susmita.org> <9cc0a3fa1d403f16f4fc9b2abb49fb75@mail.wcborstel.com> X-Mailer: Apple Mail (2.915) X-Brightmail-Tracker: AAAAAA== Cc: girishvenkatachalam@gmail.com, Jorn Argelo , freebsd-questions@freebsd.org 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: Wed, 19 Dec 2007 00:07:03 -0000 On Dec 17, 2007, at 7:56 AM, Eric Crist wrote: > I hear a lot of people saying that greylisting doesn't work, when I > have actual numbers for my network proving it does. These numbers > are from the first week of May 2007 to today: > > Greylisted/Rejected Messages: 187560 > Spam Tagged Messages: 3806 > Virus Tagged Messages: 0 > Bounced Messages: 7 > > Total Messages Sent: 761 > Total Messages Delivered: 25345 I'd second the recommendation, although my stats don't keep long-term track of the difference between something greylisted and something bounced due to policy-weightd. Over the past year, I've had: Rejected Messages: 1,624,353 Spam Tagged Messages: 39,633 Virus Tagged Messages: 2947 Bounced Messages: 7609 Total sent: 103,433 Total received: 122,614 About 93% of the incoming traffic gets rejected permanently (via policy-weightd) or temporarily via greylisting; of the remainder, about 40% is tagged as spam and about 3% is tagged as viral. -- -Chuck