Date: Tue, 10 Oct 1995 09:26:12 -0700 (PDT)
From: Mark Crispin <MRC@Panda.COM>
Sender: Mark Crispin <mrc@Ikkoku-Kan.Panda.COM>
Subject: Re: What's the Sender header for?
To: Harald.T.Alvestrand@uninett.no
Cc: Eric Thomas <ERIC@SEARN.SUNET.SE>, Keith Moore <moore@cs.utk.edu>,
        drums@cs.utk.edu
In-Reply-To: <199510092058.VAA12428@dale.uninett.no>
Message-Id: <MailManager.813342372.22385.mrc@Ikkoku-Kan.Panda.COM>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; CHARSET=US-ASCII

On Mon, 09 Oct 1995 21:58:25 +0100, Harald.T.Alvestrand@uninett.no wrote:
> I'm willing to grant Eric's point on Sender: and change the meaning to
> be "the entity that last caused the message to be injected into the
> mail system".

I'm not, because I don't think this is right.  This forces resenders to go
into a header and remove the Sender: header.

Eric also has the habit of sending replies to both the From: and Sender:
headers of my messages.  That doesn't mean that this practice is correct.

> Out of 73 messages from various IETF lists, 62 of them had Sender: fields,
> 9 of these were *not* some alias for the list maintainer, and *all* of
> these were messages on (SURPRISE.....) the DRUMS list.

I don't think this is a valid sample.