From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/36352 Path: main.gmane.org!not-for-mail From: prj@po.cwru.edu (Paul Jarc) Newsgroups: gmane.emacs.gnus.general Subject: Re: Sender header? Date: 24 May 2001 15:00:49 -0400 Sender: prj@multivac.cwru.edu Message-ID: References: <01May23.141128edt.115245@gateway.intersys.com> <01May24.115917edt.115250@gateway.intersys.com> <01May24.143521edt.115214@gateway.intersys.com> NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1035171951 8156 80.91.224.250 (21 Oct 2002 03:45:51 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Mon, 21 Oct 2002 03:45:51 +0000 (UTC) Return-Path: Original-Received: (qmail 27239 invoked by alias); 24 May 2001 19:00:51 -0000 Original-Received: (qmail 27234 invoked from network); 24 May 2001 19:00:51 -0000 Original-Received: from multivac.student.cwru.edu (HELO multivac.cwru.edu) (261@129.22.96.25) by gnus.org with SMTP; 24 May 2001 19:00:51 -0000 Original-Received: (qmail 26056 invoked by uid 500); 24 May 2001 19:01:11 -0000 Mail-Followup-To: ding@gnus.org Original-To: "\(ding\)" In-Reply-To: <01May24.143521edt.115214@gateway.intersys.com> (Stainless Steel Rat's message of "Thu, 24 May 2001 14:35:06 -0400") User-Agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/20.7 Original-Lines: 31 Xref: main.gmane.org gmane.emacs.gnus.general:36352 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:36352 Stainless Steel Rat writes: > You seem to believe that because only one person is involved in originating > a message and submitting it that the one person has only one identity. > This is not true. A person may have multiple mailboxes, but where does RFC 2822 say that a mailbox is an identity? The RFC doesn't seem to be aware of the multiple-mailbox case, though. 3.6.2: # The "Sender:" field specifies the mailbox of the agent responsible # for the actual transmission of the message. Note "the mailbox", not "a mailbox". :( Also, I see no indication here that Sender should be tied to the system where the message originated. All the examples of uses of Sender involve one person sending a message on behalf of someone else; none of them involve one person sending their own message with a From field that doesn't indicate the system they're sending from. An "agent" is apparently a person, and your mail address on one system still identifies you even when you're sending mail from another. By your interpretation, the RFC is requiring that every machine that sends mail must be usable in a recipient address - i.e., the MX (or A) for that name must be configured to accept mail addressed to that individual host. (Otherwise, user-login-name@system-name wouldn't be a mailbox of the originator of the message.) Do you think the authors really intended to require this? paul