From owner-freebsd-questions Mon Jan 22 8: 2:29 2001 Delivered-To: freebsd-questions@freebsd.org Received: from mail.kconline.com (kconline.com [216.241.132.2]) by hub.freebsd.org (Postfix) with ESMTP id 9AC5237B698 for ; Mon, 22 Jan 2001 08:02:11 -0800 (PST) Received: from zhadum (zhadum.rim.kconline.com [216.241.133.19]) by mail.kconline.com (8.11.1/8.11.1) with SMTP id f0MG2AQ45284; Mon, 22 Jan 2001 11:02:10 -0500 (EST) (envelope-from mikea@kconline.com) Message-ID: <00d301c0848c$ade185e0$1385f1d8@rim.kconline.com> From: "Mike Atkinson" To: Subject: Sendmail - Bounces from local host relays sent From:<> Date: Mon, 22 Jan 2001 11:02:11 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG We are running Sendmail 8.11.1 with FreeBSD 4.2 on 3 MTA's on our system. After mail arrives into one of our MTA's for an invalid user on another host, the resulting bounce message to the original sender is generated with an empty MAIL FROM: value (if it is being sent to a recipient on a host other then the MTA generating the bounce.) The headers of the bounce message appear valid but the maillog of the bounce recipient shows the following: --- Jan 22 10:40:04 rim sendmail[21591]: f0MFe4L21591: from=<>, size=2246, class=0, nrcpts=1, msgid=<200101221539.f0MFd0A33621@ns.kconline.com>, proto=ESMTP, daemon=MTA, relay=ns.kconline.com [216.241.132.3] *(Note the from=<> in the log record.)* --- The actual header in the received bounce looks ok: --- Return-Path: Received: from ns.kconline.com (ns.kconline.com [216.241.132.3]) by rim.kconline.com (8.11.1/8.11.1) with ESMTP id f0MFe4L21591 for ; Mon, 22 Jan 2001 10:40:04 -0500 (EST) Received: from localhost (localhost) by ns.kconline.com (8.11.1/8.11.1) id f0MFd0A33621; Mon, 22 Jan 2001 10:39:00 -0500 (EST) (envelope-from MAILER-DAEMON) Date: Mon, 22 Jan 2001 10:39:00 -0500 (EST) From: Mail Delivery Subsystem Message-Id: <200101221539.f0MFd0A33621@ns.kconline.com> To: mikea@rim.kconline.com --- Some hosts outside of our system (and some of our virtual host clients) are rejecting these bounces claiming an invalid sender: --- ----- The following addresses had permanent fatal errors ----- (reason: 501 bogus mail from) ----- Transcript of session follows ----- ... while talking to mail.forestriverinc.com.: >>> MAIL From:<> SIZE=5133 <<< 501 bogus mail from 501 5.6.0 ... Data format error --- (Or some similar rejection message depending on the MTA of the recipient.) I haven't been able to figure out so far why this is happening and have searched the FreeBSD and Sendmail archives for a solution. Can anyone shed some light on why this is happening and what we might have misconfigured to cause this behavior? ----- Mike Atkinson - mikea@kconline.com KC Online, Inc. - System Administration ----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message