Envelope header disappeared

[Neil Jerram]

The Envelope-To header seems to have disappeared from Guile mailing
list emails, which is a shame as I was using it to help classify
emails that I receive through my ISP.

Specifically, headers used to include lines like this:

----------------------------------
X-From_: address@hidden  Tue Jun  5 14:10:22 2001
Received: from fencepost.gnu.org (address@hidden [199.232.76.164])
        by s1.uklinux.net (8.11.2/8.11.1) with ESMTP id f55DAL213439
        for <address@hidden>; Tue, 5 Jun 2001 14:10:21 +0100
Envelope-To: <address@hidden>
Received: from localhost ([127.0.0.1] helo=fencepost.gnu.org)
        by fencepost.gnu.org with esmtp (Exim 3.16 #1 (Debian))
        id 157Fdu-0007GB-00; Tue, 05 Jun 2001 08:09:02 -0400
----------------------------------

Now they look like this:

----------------------------------
X-From_: address@hidden  Mon Jun 18 16:09:51 2001
Received: from fencepost.gnu.org (fencepost.gnu.org [199.232.76.164])
        by s1.uklinux.net (8.11.2/8.11.1) with ESMTP id f5IF9oL24396;
        Mon, 18 Jun 2001 16:09:51 +0100
Received: from localhost ([127.0.0.1] helo=fencepost.gnu.org)
        by fencepost.gnu.org with esmtp (Exim 3.16 #1 (Debian))
        id 15C0eg-0002Fp-00; Mon, 18 Jun 2001 11:09:30 -0400
----------------------------------

Is there any chance of putting the Envelope-To header back in there?

Many thanks,

        Neil