Re: Disable generation of "Sender: " by default.

[Russ Allbery <rra@stanford.edu>]

Stainless Steel Rat <ratinox@peorth.gweep.net> writes:

> RFC 1036: Sender exists as a crude authentication mechanism.  Sender is
> the authenticated (by software) local mailbox of the originator of the
> message when that mailbox differs from the one in the originator header.
> Ie, if I am on, say, skuld.gweep.net w/ login 'ratinox' and I post a
> news article with 'grumble@bogus.com' as my From header, then some
> program somewhere must generate 'Sender: ratinox@skuld.gweep.net'.

> They are not even vaguely close to each other.  My opinion is that RFC
> 1036's Sender is badly broken, because it utterly fails to accomplish
> its goal.  RFC 822's Sender does exactly what it is intended to do, no
> more, no less.

I'm fairly sure USEFOR drops the entire broken idea of a Sender header,
thankfully.

LISTSERV still responds to the Sender header rather than the From header,
checks the Sender header to see if you can post to a list, and if you try
to subscribe to a mailing list, subscribes the content of your Sender
header instead of your From address.  That's why I turned off Sender in my
Gnus settings; it's easier to do that than it is to try to argue with Eric
Thomas that his software is doing something really stupid.

-- 
Russ Allbery (rra@stanford.edu)             <http://www.eyrie.org/~eagle/>