From owner-freebsd-isp Fri Dec 15 6:24:18 2000 From owner-freebsd-isp@FreeBSD.ORG Fri Dec 15 06:24:14 2000 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mout0.freenet.de (mout0.freenet.de [194.97.50.131]) by hub.freebsd.org (Postfix) with ESMTP id CCF8737B400 for ; Fri, 15 Dec 2000 06:24:13 -0800 (PST) Received: from [194.97.50.138] (helo=mx0.freenet.de) by mout0.freenet.de with esmtp (Exim 3.20 #2) id 146vmK-00088d-00; Fri, 15 Dec 2000 15:24:08 +0100 Received: from a39f8.pppool.de ([213.6.57.248] helo=Magelan.Leidinger.net) by mx0.freenet.de with esmtp (Exim 3.20 #2) id 146vmK-0003LP-00; Fri, 15 Dec 2000 15:24:08 +0100 Received: from Leidinger.net (netchild@localhost [127.0.0.1]) by Magelan.Leidinger.net (8.11.1/8.11.1) with ESMTP id eBFDNmT93345; Fri, 15 Dec 2000 14:23:49 +0100 (CET) (envelope-from netchild@Leidinger.net) Message-Id: <200012151323.eBFDNmT93345@Magelan.Leidinger.net> Date: Fri, 15 Dec 2000 14:23:46 +0100 (CET) From: Alexander Leidinger Subject: Re: sendmail NOQUEUE: Null connection from some.domain [a.b.c.d] To: jyoung@accessus.net Cc: freebsd-isp@FreeBSD.ORG, mdickerson@officeonweb.net In-Reply-To: MIME-Version: 1.0 Content-Type: TEXT/plain; charset=us-ascii Sender: netchild@leidinger.net Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 14 Dec, Jason Young wrote: > > A "null connection" is when sendmail gets a connection to its TCP port, and > sends its banner, and the remote client either A) closes the connection > without doing anything or B) issues only the QUIT command, which closes the > sendmail connection immediately. There's als a C): If MS Exchange Ver ? tries to deliver mail to a 3-stable (sendmail) machine. It's reproduceable (here), the mail didn't gets delivered, sendmail reports a null connection. I'm not able to tell you more about the configuration of Exchange, it's not our system. Bye, Alexander. -- Speak softly and carry a cellular phone. http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = 7423 F3E6 3A7E B334 A9CC B10A 1F5F 130A A638 6E7E To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message