On 1/15/2019 4:58 PM, John Levine wrote:
I am staring at RFC 7489, and at a bunch of purported DMARC records
(see previous message.)
The RFC says that all records must start with "v=DMARC1". Is it OK
if they start with "v=dmarc1"? It says that record is a DKIM tag-value
list, and the DKIM ABBF defines all the characters with hex escapes
rather than letters which tells me that it's specifically saying
that case matters.
How about if there's a space before the v=DMARC1? The tag-value syntax
allows FWS before the first tag, but 7489 says in several places
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.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
_______________________________________________
dmarc mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/dmarc
