From owner-freebsd-questions@FreeBSD.ORG Wed Jan 14 07:52:01 2009 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 5CF4C1065670 for ; Wed, 14 Jan 2009 07:52:01 +0000 (UTC) (envelope-from Pieter.Donche@ua.ac.be) Received: from hmacs.cmi.ua.ac.be (hmacs.cmi.ua.ac.be [143.129.75.10]) by mx1.freebsd.org (Postfix) with ESMTP id E825C8FC19 for ; Wed, 14 Jan 2009 07:52:00 +0000 (UTC) (envelope-from Pieter.Donche@ua.ac.be) Received: from hmacs.cmi.ua.ac.be (localhost [127.0.0.1]) by hmacs.cmi.ua.ac.be (8.13.8+Sun/8.13.8) with ESMTP id n0E7pxec001185; Wed, 14 Jan 2009 08:51:59 +0100 (CET) Received: from localhost (pdon@localhost) by hmacs.cmi.ua.ac.be (8.13.8+Sun/8.13.8/Submit) with ESMTP id n0E7pxud001182; Wed, 14 Jan 2009 08:51:59 +0100 (CET) X-Authentication-Warning: hmacs.cmi.ua.ac.be: pdon owned process doing -bs Date: Wed, 14 Jan 2009 08:51:59 +0100 (CET) From: Pieter Donche X-X-Sender: pdon@hmacs.cmi.ua.ac.be To: Mel In-Reply-To: <200901131429.07667.fbsd.questions@rachie.is-a-geek.net> Message-ID: References: <200901131429.07667.fbsd.questions@rachie.is-a-geek.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: "mail.list freebsd-questions" Subject: Re: receiving mail X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Pieter Donche List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Jan 2009 07:52:01 -0000 on host1: $ host -t MX macos.cmi.ua.ac.be returns no answer This is the same as with another host on the same subnet, also in the same zone and on the same switch... and which does receive a sent mail --- But, when I try from host1 $ telnet host2.domain.topdom 25 Trying 143.129.75.1... telnet: Unable to connect to remote host: Connection refused Op host2.domain.topdom I see sendmail is running: host2: $ ps -jaxw | grep sendm smmsp 816 1 816 816 0 Is ?? 0:00.02 sendmail: Queue runner@00:30:00 for /var/spool/clientmqueue (sendmail) root 812 1 812 812 0 Ss ?? 0:00.01 sendmail: accepting connections (sendmail) What's wrong? Why does this not work out of the box ?? On Tue, 13 Jan 2009, Mel wrote: > On Tuesday 13 January 2009 13:20:33 Pieter Donche wrote: > >> 'Returned mail: see transcript for details": >> >> ----- The following addresses had permanent fatal errors ----- >> >> >> ----- Transcript of session follows ----- >> 550 5.1.2 ... Host unknown (Name server: >> mailhost.domain.topdom: host not found) >> ------------- >> >> host1 and host2 are both behind a firewall, but they are in the same >> zone (so firewall rules do not apply), both are even connected to same >> switch and their IPs are in the same subnet. >> Both have fixed IP address (not DHCP) >> >> mailhost.domain.topdom does not exist in DNS, but host1 can send >> mail to other mailservers all over the world. > > MX record for host2.domain.topdom resolves to an unknown > mailhost.domain.topdom. > See: host -t MX host2.domain.topdom on host1.domain.topdom. > > -- > Mel > > Problem with today's modular software: they start with the modules > and never get to the software part. >