On 1/16/2019 7:30 AM, John R Levine wrote:
The formal specification is quite clear on both of your questions:
Section 6.4:
dmarc-version = "v" *WSP "=" *WSP %x44 %x4d %x41 %x52 %x43 %x31
which means that the white space is required to be allowed and the
value in this tag-value is case sensitive.
Thanks, but the white space in question is before the "v".
The ABNF rule I included, and the one that cites it (dmarc-record) do
not show any white space permitted before the 'v', so no it's not legal.
So the formalities are quite clear on both your questions.
Whether there is benefit or detriment in making the parser more robust
than the formal rules define goes to the heart of the last point in your
original note.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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