From owner-freebsd-stable@FreeBSD.ORG Fri Aug 27 14:44:10 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B11D810656A3 for ; Fri, 27 Aug 2010 14:44:10 +0000 (UTC) (envelope-from peter@simons-rock.edu) Received: from hedwig.simons-rock.edu (hedwig.simons-rock.edu [208.81.88.14]) by mx1.freebsd.org (Postfix) with ESMTP id 770368FC1F for ; Fri, 27 Aug 2010 14:44:10 +0000 (UTC) Received: from cesium.hyperfine.info (c2.8d.5646.static.theplanet.com [70.86.141.194]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by hedwig.simons-rock.edu (Postfix) with ESMTP id 6EF4E2BB35E; Fri, 27 Aug 2010 10:15:05 -0400 (EDT) Date: Fri, 27 Aug 2010 10:15:03 -0400 From: "Peter C. Lai" To: Ronald Klop Message-ID: <20100827141503.GA57669@cesium.hyperfine.info> References: <4C74261A.4000401@icyb.net.ua> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Cc: freebsd-stable@freebsd.org, Andriy Gapon Subject: Re: cname replace in mail address? [off-topic] (Re: Attn Ronald Klop) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Aug 2010 14:44:10 -0000 Does the recipient MTA actually receive for both klop.yi.org *and* thuis.klop.ws? The recipient MTA will dereference the CNAME and rewrite the envelope for the reason that it can only relay to an RR that points to a real host. You might be able to fix it if you configure the mta on thuis.klop.ws to accept mail for the thuis.klop.ws domain in addition to klop.yi.org (which I assume is how you have it setup). In a situation like this if you have domain CNAME originaldomain then you better make sure that someone can send to either @domain AND @originaldomain otherwise it doesn't make sense. On 2010-08-27 10:03:52AM +0200, Ronald Klop wrote: > offtopic, but why do some mailers replace a CNAME in a mail-address? > > root@sheeva2:/var/vmail# host klop.yi.org > klop.yi.org CNAME thuis.klop.ws > thuis.klop.ws A 212.123.145.58 > > It is not the first time that I'm bitten by this, but I never understood > it. > > Ronald. > > On Tue, 24 Aug 2010 22:05:46 +0200, Andriy Gapon wrote: > > > > > Ronald, > > > > your email address bounces, that's inconvenient. > > > > > > -------- Original Message -------- > > Subject: Returned mail: Service unavailable > > Date: Tue, 24 Aug 2010 23:03:33 +0300 (EEST) > > From: Mail Delivery Subsystem > > To: > > > > The original message was received at Tue, 24 Aug 2010 23:03:27 +0300 > > (EEST) > > from porto-e.starpoint.kiev.ua [212.40.38.100] > > > > ----- The following addresses had permanent fatal errors ----- > > > > > > ----- Transcript of session follows ----- > > ... while talking to thuis.klop.ws.: > >>>> RCPT To: > > <<< 554 5.7.1 : Relay access denied > > 554 ... Service unavailable > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- =========================================================== Peter C. Lai | Bard College at Simon's Rock Systems Administrator | 84 Alford Rd. Information Technology Svcs. | Gt. Barrington, MA 01230 USA peter AT simons-rock.edu | (413) 528-7428 ===========================================================