From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/28088 Path: main.gmane.org!not-for-mail From: Stainless Steel Rat Newsgroups: gmane.emacs.gnus.general Subject: Re: Fully-qualifying Email addresses in outgoing mail Date: 10 Dec 1999 15:58:28 -0500 Organization: The Happy Fun Ball Brigade Sender: owner-ding@hpc.uh.edu Message-ID: References: NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: main.gmane.org 1035164996 27993 80.91.224.250 (21 Oct 2002 01:49:56 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Mon, 21 Oct 2002 01:49:56 +0000 (UTC) Return-Path: Original-Received: from bart.math.uh.edu (bart.math.uh.edu [129.7.128.48]) by sclp3.sclp.com (8.8.5/8.8.5) with ESMTP id PAA27984 for ; Fri, 10 Dec 1999 15:59:13 -0500 (EST) Original-Received: from sina.hpc.uh.edu (lists@Sina.HPC.UH.EDU [129.7.3.5]) by bart.math.uh.edu (8.9.1/8.9.1) with ESMTP id OAB28137; Fri, 10 Dec 1999 14:59:05 -0600 (CST) Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Fri, 10 Dec 1999 14:59:12 -0600 (CST) Original-Received: from sclp3.sclp.com (root@sclp3.sclp.com [204.252.123.139]) by sina.hpc.uh.edu (8.9.3/8.9.3) with ESMTP id OAA16846 for ; Fri, 10 Dec 1999 14:59:02 -0600 (CST) Original-Received: from peorth.gweep.net (h0060978d8c91.ne.mediaone.net [24.218.42.159]) by sclp3.sclp.com (8.8.5/8.8.5) with ESMTP id PAA27975 for ; Fri, 10 Dec 1999 15:58:34 -0500 (EST) Original-Received: (from ratinox@localhost) by peorth.gweep.net (8.9.3/8.9.3) id PAA05101; Fri, 10 Dec 1999 15:58:28 -0500 X-Authentication-Warning: peorth.gweep.net: ratinox set sender to ratinox@peorth.gweep.net (Stainless Steel Rat) using -f Original-To: "(ding)" X-Attribution: Rat In-Reply-To: Kai.Grossjohann@CS.Uni-Dortmund.DE's message of "10 Dec 1999 20:44:48 +0100" Original-Lines: 35 User-Agent: Gnus/5.0802 (Gnus v5.8.2) XEmacs/20.4 (Emerald) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:28088 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:28088 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 * Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann) on Fri, 10 Dec 1999 | Do you think this should only happen when calling a program like | /bin/mail (or mailx, or sendmail), or should it also happen when you | issue `RCPT TO: ' to an SMTP server? Here is a hopefully not very contrived example. I am the admin of just one machine within a larger domain. The domain has a wildcard MX record, so all network mail is delivered to a central mail hub, a machine I do not have root access on. So of course I want root's mail to be delivered locally on my machine. But if `root' is expanded with a fully-qualified domain part, it will fall to the MX lookup for delivery, which will cause my errors to be delivered to the site's mail hub. Bad. It gets really hairy if you happen to have an "illegally owned" domain behind a firewall (there are a lot of them out there). If you expand the To mailbox to include the domain, it becomes impossible to tell whether to deliver the message to the internal mail hub or the real domain's hub. So to finally answer the question, local mailboxes should not be expanded. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.0g (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE4UWlzgl+vIlSVSNkRArbZAKDY37ZqjVGmQ4tHcOQVERmgrX8okQCfVVrg dcGUGL9wvc9Q+Qv1++Y/K2w= =ynZP -----END PGP SIGNATURE----- -- Rat \ Warning: pregnant women, the elderly, and Minion of Nathan - Nathan says Hi! \ children under 10 should avoid prolonged PGP Key: at a key server near you! \ exposure to Happy Fun Ball.