From owner-freebsd-ports@FreeBSD.ORG Mon Sep 27 13:53:39 2004 Return-Path: Delivered-To: freebsd-ports@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 697A016A4CE for ; Mon, 27 Sep 2004 13:53:39 +0000 (GMT) Received: from yertle.kcilink.com (yertle.kcilink.com [65.205.34.180]) by mx1.FreeBSD.org (Postfix) with ESMTP id D8A3C43D41 for ; Mon, 27 Sep 2004 13:53:38 +0000 (GMT) (envelope-from vivek@khera.org) Received: from [192.168.7.103] (host-103.int.kcilink.com [192.168.7.103]) by yertle.kcilink.com (Postfix) with ESMTP id 335692178A for ; Mon, 27 Sep 2004 09:53:38 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v619) In-Reply-To: <20040926001503.GD1233@k7.mavetju> References: <20040926001503.GD1233@k7.mavetju> Content-Type: multipart/signed; micalg=sha1; boundary=Apple-Mail-33--125582665; protocol="application/pkcs7-signature" Message-Id: From: Vivek Khera Date: Mon, 27 Sep 2004 09:53:37 -0400 To: FreeeBSD Ports X-Mailer: Apple Mail (2.619) X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: Re: mail/p5-Mail-SpamAssassin vs mail/postgrey X-BeenThere: freebsd-ports@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting software to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Sep 2004 13:53:39 -0000 --Apple-Mail-33--125582665 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed On Sep 25, 2004, at 8:15 PM, Edwin Groothuis wrote: > If you're running spam assassin in combination with a real mail > server (i.e. not only using it after you've popped mail from your > ISP), have a look at greylisting with for example mail/postgrey > (postfix). > I'll second this. Putting a greylist in action like this has nearly cut our spam to our abuse@ address to just noise as compared to before when it was overwhelming. We can't filter on that address since legitimate complaints may contain stuff that scores high. You do have to be very careful with whitelisting certain places or you could end up with mail you can't deliver. For example, many sites use a sender verification call back, and if you defer that, then the outbound mail doesn't go through to that site. The next attempt to deliver it may contact a different server, etc. --Apple-Mail-33--125582665--