From owner-freebsd-isp@FreeBSD.ORG Thu Sep 21 23:33:06 2006 Return-Path: X-Original-To: freebsd-isp@freebsd.org Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4B59A16A415 for ; Thu, 21 Sep 2006 23:33:06 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from smtpout.mac.com (smtpout.mac.com [17.250.248.181]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0782543D55 for ; Thu, 21 Sep 2006 23:33:05 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from mac.com (smtpin07-en2 [10.13.10.152]) by smtpout.mac.com (Xserve/8.12.11/smtpout11/MantshX 4.0) with ESMTP id k8LNX4Ol022134; Thu, 21 Sep 2006 16:33:04 -0700 (PDT) Received: from [17.214.13.96] (a17-214-13-96.apple.com [17.214.13.96]) (authenticated bits=0) by mac.com (Xserve/smtpin07/MantshX 4.0) with ESMTP id k8LNWrEl000770; Thu, 21 Sep 2006 16:33:03 -0700 (PDT) In-Reply-To: <20060921232238.12681.qmail@web58411.mail.re3.yahoo.com> References: <20060921232238.12681.qmail@web58411.mail.re3.yahoo.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: Chuck Swiger Date: Thu, 21 Sep 2006 16:32:52 -0700 To: Dave Kingsley X-Mailer: Apple Mail (2.752.2) X-Brightmail-Tracker: AAAAAA== X-Brightmail-scanned: yes Cc: freebsd-isp@freebsd.org Subject: Re: DNS - Postfix X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Sep 2006 23:33:06 -0000 On Sep 21, 2006, at 4:22 PM, Dave Kingsley wrote: > Our DNS server coughed a major hairball and our > postfix based email setup suddenly stopped working. [ ... ] > Our problem seemd to be centered around MX records.?! > > What do I need to post (file chuncks, etc.) to aid getting help? The mailserver must have access to the DNS, or it will need to forward all email to a mail relay which does have working DNS. It is likely that if you add the IP address of a working nameserver to /etc/ resolv.conf on your mailserver, it will become happy again until you can fix your own DNS. Otherwise, you can change the "relayhost" setting /usr/local/etc/ postfix/main.cf: # In the case of SMTP, specify a domain, host, host:port, [host]:port, # [address] or [address]:port; the form [host] turns off MX lookups. # # If you're connected via UUCP, see also the default_transport parameter. # #relayhost = $mydomain #relayhost = [gateway.my.domain] #relayhost = [mailserver.isp.tld] Uncomment the last and replace the stuff within the square brackets with the IP address of your ISP's mailserver... -- -Chuck