lists and DMARC and ARC, was Incoming SMTP in the year 2017 and absence of DKIM

Grant Taylor gtaylor at
Wed Nov 29 22:40:24 UTC 2017

On 11/29/2017 03:24 PM, Michael Thomas wrote:
> Message footers and subject lines can be dealt with. That's already been 
> proven within the current DKIM spec.

Please humor my ignorance and explain how a subject line (which is 
(over)signed) can be dealt with in the current DKIM spec?

I get how footers can be dealt with, read appended.  At least as long as 
DKIM only signs a given amount of the (original) body.  (Though HTML 
(read: MIME structures) can complicate this.)  -  Or are you referring 
to something else?

Grant. . . .
unix || die

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