invalidation by a listserver

From: Andreas Schulze <sca_at_andreasschulze.de>
Date: Thu, 16 Jun 2011 16:53:29 +0200

Hello,

I sign all mails inclding a "z=" tag in signatures.
Sending to a specific mailinglist I got my own ( signed )
mail back and (of course?) validation failed.

In the DiagnosticDirectory opendkim saved a report:
(thanks for --enable-diffheaders :-)

--- snip
z tag headers:

<my signed header>
--------------------

Received headers:

<my received headers>
--------------------

Munging detected:

-Content-Type: text/plain;charset=iso-8859-1
+Content-Type: text/plain; charset="iso-8859-1"
--- snap

Can I make the signature imune to such changes?
Thanks
Andreas

-- 
########################################################################
#
# Andreas Schulze
# https://andreasschulze.de
# 
# GnuPG Key-ID: A7DBA67F, https://andreasschulze.de/sca.asc
# GnuPG Fingerprint: 14C1 39A8 CE6D 6BE0 28C6 5652 03B5 6793 A7DB A67F
#
# $Id: .signature,v 1.3 2007-12-27 21:13:36 sca Exp $
########################################################################

Received on Thu Jun 16 2011 - 14:53:55 PST