On 01/Apr/11 23:08, Murray S. Kucherawy wrote:
> *2.3**.  Identity*
> 
>    A person, role, or organization.  In the context of DKIM, examples
>    include the author, the author's organization, an ISP along the
>    handling path, an independent trust assessment service, and a mailing
>    list operator.

Besides assessment services, there have been several discussions about
operators along the handling path, who sometimes break signatures.  I
propose to clarify the text that discusses the interpretation, in
Section 4.2, by adding a sentence to the fourth paragraph, something
like so:

   Signers SHOULD NOT remove any DKIM-Signature header fields from
   messages they are signing, even if they know that the signatures
   cannot be verified.  Instead, when a relay alters a message such
   that any valid signature gets broken, it SHOULD re-identify the
   message by synthesizing a new Message-ID for it, according to
   Section 3.6.4 of RFC 5322.

Would that help deterring on-the-fly auto-conversions?

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