From owner-freebsd-questions@FreeBSD.ORG Sat Feb 25 18:39:41 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0FA03106564A for ; Sat, 25 Feb 2012 18:39:41 +0000 (UTC) (envelope-from chris_bender@cellularatsea.com) Received: from wireless.icgws.com (wireless.icgws.com [198.211.94.23]) by mx1.freebsd.org (Postfix) with ESMTP id C43928FC0C for ; Sat, 25 Feb 2012 18:39:40 +0000 (UTC) Received: by wireless.icgws.com (Postfix, from userid 1003) id C16B4180D93; Sat, 25 Feb 2012 13:38:13 -0500 (EST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on wireless.icgws.com X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.5 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.3.1 Received: from wmstp.corp.cellularatsea.com (unknown [10.200.250.42]) by wireless.icgws.com (Postfix) with SMTP id 96D2F180D88; Sat, 25 Feb 2012 13:38:12 -0500 (EST) Received: from wmstp.corp.wms.cellularatsea.com (localhost [127.0.0.1]) by wmstp.corp.cellularatsea.com (Postfix) with SMTP id C7689B18E64; Sat, 25 Feb 2012 13:39:08 -0500 (EST) Received: from wmsexg01.corp.cellularatsea.com ([10.200.104.15] helo=wmsexg01.corp.cellularatsea.com) by wmstp.corp.wms.cellularatsea.com with SMTP (ASSP 1.9.1.1); 25 Feb 2012 13:39:08 -0500 X-Ninja-PIM: Scanned by Ninja Received: from 10.200.104.30 ([10.200.104.30]) by wmsexg01.corp.cellularatsea.com ([10.200.104.15]) with Microsoft Exchange Server HTTP-DAV ; Sat, 25 Feb 2012 18:39:08 +0000 References: <863259E16B6C464DAD1E9DD10BB31154059CFBAE@wmsexg01.corp.cellularatsea.com> <4F48BAF6.9070204@ifdnrg.com> <863259E16B6C464DAD1E9DD10BB31154059CFBE7@wmsexg01.corp.cellularatsea.com> <4F48EC21.7040805@ifdnrg.com> <863259E16B6C464DAD1E9DD10BB31154059CFBEE@wmsexg01.corp.cellularatsea.com> <4F48F45F.4080304@ifdnrg.com> <863259E16B6C464DAD1E9DD10BB31154059CFBF4@wmsexg01.corp.cellularatsea.com> <4F492262.5090505@radel.com> Content-Transfer-Encoding: quoted-printable From: "Bender, Chris" Content-Type: text/plain; charset="us-ascii" Thread-Topic: Email issues, relay failure Thread-Index: Aczz7MHDLxE2q12lQKSKYR7ZxfY69w== In-Reply-To: <4F492262.5090505@radel.com> Message-ID: Date: Sat, 25 Feb 2012 13:39:02 -0500 To: "Jon Radel" MIME-Version: 1.0 X-Assp-Whitelisted: Yes () X-Assp-Envelope-From: chris_bender@cellularatsea.com X-Assp-Intended-For: jon@radel.com X-Assp-Passing: 10.200.104.15 in acceptAllMail X-Assp-ID: wmstp.corp.wms.cellularatsea.com (33019-48258) X-Assp-Version: 1.9.1.1(1.0.00) Cc: freebsd-questions@freebsd.org Subject: Re: Email issues, relay failure 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: Sat, 25 Feb 2012 18:39:41 -0000 Hi Jon Thanks. There aren't any firewalls between the devices but they are far= apart. I can telnet from x to a and I can ssh from a to x.=20 I think you are right in focusing on the connection time out from A to= X , i looked on X for a service that isnt running Which makes this fail but I am not sure=20 Which services. I see postfix and sendmail running and I have restarted= them. I never see mail delivery from A in mailog on X Thanks On Feb 25, 2012, at 1:03 PM, "Jon Radel" wrote: > On 2/25/12 10:26 AM, Bender, Chris wrote: >=20 >>=20 >> On telnet w IP it says unable to connect. > ... >> Its weird that the delivery on A says deferred connection timed out= but on tcpdump I see the port 25 >=20 >=20 > If you can't establish a TCP connection from A to your relay server= on port 25, I'd expect all of the above. If you can't establish a TCP= connection to port 25 at all from A, I'd stop focusing on the details= of the e-mail server on the relay machine (as they're likely to be besi= de the point) and start focusing on what is blocking the traffic from= A. Have you audited all the firewalls involved? To be really focused,= if you see traffic (both ways) at the relay server when A tries to talk= to port 25, but A is convinced that no TCP connection is established,= either you're stomping on things at the relay server (do your attempts= to telnet to port 25 fail immediately or just sit there for a good long= time and then fail?), the reply packets from relay to A are getting mis= -routed, or A is ignoring the packets coming in from the relay. Can you= ping from the relay to A? >=20 > There's a distinct difference between failure to establish a TCP conne= ction (look to the network stuff) and the e-mail server giving you an= error response rejecting your attempt to transfer mail or just quietly= loosing the mail (look to the e-mail servers). >=20 > --=20 > --Jon Radel > jon@radel.com >=20