From owner-freebsd-questions@FreeBSD.ORG Thu Apr 8 14:13:41 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CF35016A4CE for ; Thu, 8 Apr 2004 14:13:41 -0700 (PDT) Received: from Shenton.org (23.ebbed1.client.atlantech.net [209.190.235.35]) by mx1.FreeBSD.org (Postfix) with SMTP id E7ECF43D1F for ; Thu, 8 Apr 2004 14:13:40 -0700 (PDT) (envelope-from chris@Shenton.Org) Received: (qmail 45744 invoked by uid 1001); 8 Apr 2004 21:13:39 -0000 To: questions@freebsd.org From: Chris Shenton Date: Thu, 08 Apr 2004 17:13:39 -0400 Message-ID: <86ekqy2mws.fsf@PECTOPAH.shenton.org> User-Agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: SORBS lists mx2.freebsd.org as open relay X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Apr 2004 21:13:41 -0000 I was adding RBL blacklisting to my qmail setup, with rblsmtpd using some blacklists which a couple folks on inet-access suggested. I noticed it logging connections from mx2.freebsd.org as being in SORBS: rblsmtpd: 216.136.204.119 pid 45632: 451 Open Relay See: http://www.dnsbl.sorbs.net/cgi-bin/lookup?IP=216.136.204.119 That web page indicates port 25 is an open relay, failing a test on April 7 2004 01:46:38 GMT, relaying from relays@sorbs.net, to spamtest@sorbs.net. I manually confirmed their test, it appears as if it's a relay. This seems surprising since I know you guys have clue. When I test using some of my own addresses, it says Recipient address rejected: Relay access denied So is mx2.freebsd.or intentionally relaying from/to SORBS? On purpose? To fool it into thinking it's a relay when it's not? Any other ideas? I'd like to use some semi-reputable RBLs but can't afford to block freebsd mail. Thanks.