On Tue, Mar 24, 2015 at 6:46 PM, Stephen J. Turnbull <step...@xemacs.org>
wrote:

>  > OK, but is it folly to consider a header canonicalization that can
>  > handle this?  DKIM is designed to accommodate incremental
>  > improvements, after all.
>
> Sec. 5.3 isn't, though. :-(
>

As I read 5.3, it says you need to make sure what you sign is what the
verifier will receive.  It seems to me a signer that gets 8-bit header
fields can RFC2047-ize them before signing, presuming the MTA will make the
same conversion before putting the signed message out on the wire.

-MSK
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