From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/44921 Path: main.gmane.org!not-for-mail From: Stainless Steel Rat Newsgroups: gmane.emacs.gnus.general Subject: Re: Who sets Sender:? Date: Tue, 21 May 2002 20:02:36 -0400 Organization: The Happy Fun Ball Brigade Sender: owner-ding@hpc.uh.edu Message-ID: References: <87bsbak1ws.fsf@nwalsh.com> <87d6vqtqnv.fsf@squeaker.lickey.com> <02May21.105936edt.119176@gateway.intersystems.com> <02May21.122206edt.119093@gateway.intersystems.com> <02May21.142858edt.119269@gateway.intersystems.com> <02May21.154121edt.119281@gateway.intersystems.com> <02May21.171141edt.119208@gateway.intersystems.com> NNTP-Posting-Host: localhost.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1022026047 4444 127.0.0.1 (22 May 2002 00:07:27 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 22 May 2002 00:07:27 +0000 (UTC) Return-path: Original-Received: from malifon.math.uh.edu ([129.7.128.13]) by main.gmane.org with esmtp (Exim 3.33 #1 (Debian)) id 17AJf5-00019Y-00 for ; Wed, 22 May 2002 02:07:27 +0200 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 17AJcf-00045e-00; Tue, 21 May 2002 19:04:57 -0500 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Tue, 21 May 2002 19:05:16 -0500 (CDT) Original-Received: from sclp3.sclp.com (qmailr@sclp3.sclp.com [209.196.61.66]) by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id TAA11775 for ; Tue, 21 May 2002 19:05:02 -0500 (CDT) Original-Received: (qmail 15697 invoked by alias); 22 May 2002 00:04:38 -0000 Original-Received: (qmail 15688 invoked from network); 22 May 2002 00:04:37 -0000 Original-Received: from h0060978d8c91.ne.client2.attbi.com (HELO peorth.gweep.net) (sgpkul@24.218.202.161) by gnus.org with SMTP; 22 May 2002 00:04:37 -0000 Original-Received: (from ratinox@localhost) by peorth.gweep.net (8.11.6/8.11.6) id g4M02aL03109; Tue, 21 May 2002 20:02:36 -0400 Original-To: ding@gnus.org X-Attribution: Rat In-Reply-To: (prj@po.cwru.edu's message of "Tue, 21 May 2002 17:51:29 -0400") Original-Lines: 40 User-Agent: Gnus/5.090006 (Oort Gnus v0.06) XEmacs/21.1 (Cuyahoga Valley, i686-pc-linux) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:44921 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:44921 * prj@po.cwru.edu (Paul Jarc) on Tue, 21 May 2002 | Chapter and verse, please. There is a lot of material to cover. O'Reiley & Associates has a couple of good books on the subjects. Start with DNS/BIND (cricket book) and SMTP stuff (bat book). [...] | That requires a significant degree of cooperation among hosts at a | site; In fact, it can work with no cooperation at all. It requires a single wildcard MX record for the domain in the domain's zone file. Cooperation helps, of course. | all usernames on all machines must be known to the mail server. | I don't think that's universally agreed-upon to be a "proper" policy, It has been everywhere I have worked and almost everywhere my sysadmin friends have worked. The only sites that do not wildcard MX their domains and match mail and machine logins are those run by incompetent management. | and I don't think MUAs should assume this to be true any more than you | think networks should assume MUAs to be well-configured. The beauty of it is that the MUA does not need to assume much of anything other than that the host is properly configured, which we agree should be the case anyway. And the site assumes nothing other than each node within it is configured correctly, which we agree should be the case anyway. By the way, note the Received headers in this message and compare them to those I sent earlier today. My machine, peorth.gweep.net, is a notebook. It travels. Relying on Received headers for Sender information in my case is useless. -- Rat \ Happy Fun Ball may stick to certain types Minion of Nathan - Nathan says Hi! \ of skin. PGP Key: at a key server near you! \ That and five bucks will get you a small coffee at Starbucks.