From owner-freebsd-questions@FreeBSD.ORG Wed May 23 06:17:27 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 404A216A41F for ; Wed, 23 May 2007 06:17:27 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (ns0.infracaninophile.co.uk [81.187.76.162]) by mx1.freebsd.org (Postfix) with ESMTP id 96F6413C44C for ; Wed, 23 May 2007 06:17:26 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from happy-idiot-talk.infracaninophile.co.uk (localhost.infracaninophile.co.uk [IPv6:::1]) by smtp.infracaninophile.co.uk (8.14.1/8.14.1) with ESMTP id l4N6H7bu030989; Wed, 23 May 2007 07:17:09 +0100 (BST) (envelope-from m.seaman@infracaninophile.co.uk) Authentication-Results: smtp.infracaninophile.co.uk from=m.seaman@infracaninophile.co.uk; sender-id=permerror; spf=permerror X-SenderID: Sendmail Sender-ID Filter v0.2.14 smtp.infracaninophile.co.uk l4N6H7bu030989 Message-ID: <4653DC63.4080609@infracaninophile.co.uk> Date: Wed, 23 May 2007 07:17:07 +0100 From: Matthew Seaman Organization: Infracaninophile User-Agent: Thunderbird 2.0.0.0 (X11/20070521) MIME-Version: 1.0 To: Maxim Khitrov References: <26ddd1750705211537j78ed83fdm921f7f5e5df5c4@mail.gmail.com> <20070522105732.A2743@erienet.net> <26ddd1750705220837n141787fdh6167c0cb07a8396f@mail.gmail.com> <20070522121629.X86945@fledge.watson.org> <26ddd1750705221046m543c427ahf9c73878d14f6e2a@mail.gmail.com> <9355E7E0-1B92-40A1-BDB2-D17FD1815814@lafn.org> <465340C0.3040705@xxiii.com> <26ddd1750705221321n39d72034m3773ecce8ab49da1@mail.gmail.com> In-Reply-To: <26ddd1750705221321n39d72034m3773ecce8ab49da1@mail.gmail.com> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (smtp.infracaninophile.co.uk [IPv6:::1]); Wed, 23 May 2007 07:17:19 +0100 (BST) X-Virus-Scanned: ClamAV 0.90.2/3284/Wed May 23 06:02:20 2007 on happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, DKIM_POLICY_TESTING, DK_POLICY_SIGNSOME,NO_RELAYS autolearn=ham version=3.1.8 X-Spam-Checker-Version: SpamAssassin 3.1.8 (2007-02-13) on happy-idiot-talk.infracaninophile.co.uk Cc: freebsd-questions@freebsd.org Subject: Re: Sendmail ignores hosts.allow 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, 23 May 2007 06:17:27 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Maxim Khitrov wrote: > Do you know > if there is a reason they chose to do it this way? Accept the > connection, but don't allow the client to do anything with it? If sendmail just dropped the connection, then the sending MTA would retry the message, potentially every 15 minutes for up to 5 days. The way sendmail does it, the sending MTA gets a 5xx permanent error message straight away, meaning it tries once and then fails. Of course, that assumes the MTAs involved are doing something like following the appropriate RFCs, which most of the spambots fail to do. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.3 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGU9xj8Mjk52CukIwRCCUDAKCO6YUZ8TdFAQe7EVB7UcY7uzPYGwCfZL2u J6hLJvLN0DQnRJV9Z26Qdto= =IG3h -----END PGP SIGNATURE-----