From owner-freebsd-isp@FreeBSD.ORG Mon Jul 17 14:41:29 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 5F93E16A4FA for ; Mon, 17 Jul 2006 14:41:29 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE35243D55 for ; Mon, 17 Jul 2006 14:41:28 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 9C208605E; Mon, 17 Jul 2006 10:41:27 -0400 (EDT) X-Virus-Scanned: amavisd-new at codefab.com Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wiPode8G8IF1; Mon, 17 Jul 2006 10:41:26 -0400 (EDT) Received: from [192.168.1.251] (pool-68-161-117-245.ny325.east.verizon.net [68.161.117.245]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id 636E75C35; Mon, 17 Jul 2006 10:41:26 -0400 (EDT) Message-ID: <44BBA190.6070107@mac.com> Date: Mon, 17 Jul 2006 10:41:20 -0400 From: Chuck Swiger User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) MIME-Version: 1.0 To: Bas Hendriks References: <44BB9EFE.8040409@cybox.nl> In-Reply-To: <44BB9EFE.8040409@cybox.nl> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-isp@freebsd.org Subject: Re: Sendmail: Deferred: Name server: xxx.xxx.xxx: host name lookup failure 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: Mon, 17 Jul 2006 14:41:29 -0000 Bas Hendriks wrote: > I have a problem with one of my servers, > Suddenly i am getting a lot of "Deferred: Name server: xxx.xxx.xxx: host > name lookup failure" while DNS resolving on that box is ok(from the > command line de backend servers do resolve and are reachable). The mail > stays in the mailqueue. That's normal when a spam-run drops a lot of mail in the queue before someone at the registrar yanks the DNS registration. You can manually flush the queue with a shorter or zero retry interval to clean up the queue of this stuck mail via sendmail -q.... -- -Chuck