[ietf-dkim] 8bit downgrades

[Alessandro Vesely]

On 23/May/11 06:35, Hector Santos wrote:
> Alessandro Vesely wrote:
> 
>> For example, MTAs that autoconvert from quoted-printable to 8bit, a
>> rather common circumstance.
> 
> I did the following Content-Transfer-Encoding failure analysis:
> 
>      Failure rates for message top level encoding type
> +--------------------------------------------------------+
> | enctype               total       bodyfail     pct     |
> |--------------------------------------------------------|
> | 8bit                  31          25           80.6    |

It is not clear what part of these 8bit failures is due to messages
that had been downgraded before signing, and then upgraded before
verifying.