From owner-freebsd-isp Thu Sep 6 5:26:35 2001 Delivered-To: freebsd-isp@freebsd.org Received: from mailsrv.otenet.gr (mailsrv.otenet.gr [195.170.0.5]) by hub.freebsd.org (Postfix) with ESMTP id 6CF5237B406 for ; Thu, 6 Sep 2001 05:26:30 -0700 (PDT) Received: from hades.hell.gr (patr530-b061.otenet.gr [195.167.121.189]) by mailsrv.otenet.gr (8.11.5/8.11.5) with ESMTP id f86CQJ413745; Thu, 6 Sep 2001 15:26:19 +0300 (EEST) Received: (from charon@localhost) by hades.hell.gr (8.11.6/8.11.6) id f863Wip04952; Thu, 6 Sep 2001 06:32:44 +0300 (EEST) (envelope-from charon@labs.gr) Date: Thu, 6 Sep 2001 06:32:43 +0300 From: Giorgos Keramidas To: Igor Podlesny Cc: freebsd-isp@FreeBSD.ORG Subject: Re: auto relaying for subdomains -- why? Message-ID: <20010906063243.A4803@hades.hell.gr> References: <16615694707.20010905210719@morning.ru> <15254.22980.843972.348805@horsey.gshapiro.net> <8264494448.20010906104039@morning.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <8264494448.20010906104039@morning.ru>; from poige@morning.ru on Thu, Sep 06, 2001 at 10:40:39AM +0800 X-PGP-Fingerprint: 3A 75 52 EB F1 58 56 0D - C5 B8 21 B6 1B 5E 4A C2 X-URL: http://students.ceid.upatras.gr/~keramida/index.html Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org [ Removed -hackers from the Cc list. Do we really need to crosspost? ] On Thu, Sep 06, 2001 at 10:40:39AM +0800, Igor Podlesny wrote: > > > +----------+ > > | FEATURES | > > +----------+ > > .... > > Available features are: > > .... > > relay_hosts_only > > By default, names that are listed as RELAY in the access > > db and class {R} are domain names, not host names. > > For example, if you specify ``foo.com'', then mail to or > > from foo.com, abc.foo.com, or a.very.deep.domain.foo.com > > will all be accepted for relaying. This feature changes > > the behaviour to lookup individual host names only. > > Yes, I saw this info here: > http://www.sendmail.org/m4/features.html#relay_mail_from but most > valuable part of my question was about the purpose or the idea > behind this, cause it's not too clear to me why allowing relaying > for domain FOO.BAR should allow relaying for SUB.FOO.BAR? I > mentioned RFCs because I had a hope to find out the answer from it > but still haven't yet... Because it's nice to be able to relay the entire domain.com by adding a single line, instead of having to maintain a huge list of pc1.domain.com, pc2.domain.com, pc3.domain.com ... pcX.domain.com hostnames. Having a configurable option to switch between domain-relaying and host-relaying is also very thoughtful of the Sendmail developers. Isn't Unix just lovely when such wealth of options is given? :-) -giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message