[ietf-dkim] MLMs and the use of multipart/alternative to preserve original DKIM signature and at the same time add a new DKIM signature

[Murray S. Kucherawy]

> -----Original Message-----
> From: ietf-dkim-bounces at mipassoc.org [mailto:ietf-dkim-
> bounces at mipassoc.org] On Behalf Of Michael Thomas
> Sent: Tuesday, August 03, 2010 7:59 AM
> To: Rolf E. Sonneveld
> Cc: ietf-dkim at mipassoc.org
> Subject: Re: [ietf-dkim] MLMs and the use of multipart/alternative to
> preserve original DKIM signature and at the same time add a new DKIM
> signature
> 
> When we wrote our dkim implementation, we did a bunch of work within
> the
> existing DKIM framework (using l= and z=) that allowed us to get most
> original signatures to reverify through mailing lists (~95%). No work
> needed on the mailing list software at all.

But didn't we also say that such reverified signatures don't get any additional meaning with 'z=' reprocessing?