From owner-freebsd-isp@FreeBSD.ORG Thu May 13 14:17:13 2004 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 52FE016A4CE; Thu, 13 May 2004 14:17:13 -0700 (PDT) Received: from carrick.bishnet.net (carrick.bishnet.net [217.204.9.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id B431B43D31; Thu, 13 May 2004 14:17:12 -0700 (PDT) (envelope-from tim@bishnet.net) Received: from 82-68-45-195.dsl.in-addr.zen.co.uk ([82.68.45.195] helo=bishnet.net) by carrick.bishnet.net with asmtp (TLSv1:AES256-SHA:256) (Exim 4.33; FreeBSD) id 1BONZk-0009e5-VG; Thu, 13 May 2004 22:17:09 +0100 Message-ID: <40A3E5D4.1090807@bishnet.net> Date: Thu, 13 May 2004 22:17:08 +0100 From: Tim Bishop User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.6) Gecko/20040508 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marian Hettwer References: <1886.213.112.193.11.1084410012.squirrel@mail.hackunite.net> <20040513040222.2b80e76e.freebsd@yazzy.org> <40A32939.9000100@kernel32.de> In-Reply-To: <40A32939.9000100@kernel32.de> X-Enigmail-Version: 0.84.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Bishnet-MailScanner-Information: Contact postmaster@bishnet.net X-Bishnet-MailScanner-VirusCheck: Found to be clean X-Bishnet-MailScanner-From: tim@bishnet.net cc: freebsd-isp@freebsd.org cc: freebsd-security@freebsd.org Subject: Re: How do fix a good solution against spam.. X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 May 2004 21:17:13 -0000 Marian Hettwer wrote: >> Not only it's way faster than perl based messagewall, amavisd and >> mailscanner etc but it also has neat stuff like making connections >> back to the sender's MX checking for validity of the sender's email. > > This Feature sounds interesting. How is it actually called in exim ? I'd > like to check the exim docu to see some details, because it really > sounds interesting. > > Could you provide me with some keywords to search for ? You're looking for sender callout verification. http://www.exim.org/exim-html-4.30/doc/html/spec_38.html#SECT38.21 Cheers, Tim. -- Tim Bishop http://www.bishnet.net/tim PGP Key: 0x5AE7D984