On 6/27/2022 4:31 PM, John Levine wrote:
It appears that Michael StJohns <m...@nthpermutation.com> said:
I suggest that reserving "_*" names is redundant as (I *think* - I
didn't go looking for the reference?) strings beginning with an
underscore can only be used in left-most components of a DNS name.
Dunno where you heard that, but it's completely not true.
Every SRV and TLSA record has a name that starts with two underscored
labels. Every DKIM key record has _domainkey in the middle.
R's,
John
It was true once! :-) That's why I said "I think" - too many twiddles
to the DNS to keep tract of.
Mike
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