[ietf-dkim] MLMs and the use of multipart/alternative to preserve original DKIM signature and at the same time add a new DKIM signature
iane at sussex.ac.uk
Wed Aug 4 04:11:14 PDT 2010
--On 3 August 2010 19:34:55 +0200 "Rolf E. Sonneveld"
<R.E.Sonneveld at sonnection.nl> wrote:
> Changes that merely add new header fields, such as those specified by
> [LIST-ID], [LIST-URLS] and [MAIL] are generally the most friendly to
> a DKIM-participating email infrastructure in that their addition by
> an MLM will not affect any existing DKIM signatures unless
So, in an ideal world, mail clients would expose the List-* headers
(especially the unsubscribe* header) in ways that are useful to the user,
and obviate the need for MLMs to mess with subject lines and bodies.
*In my view, MLMs are required in UK law to add unsubscribe information in
a way that users can easily find it. The List-unsubscribe header isn't
adequate, only because very few clients display it.
IT Services, University of Sussex
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