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Re: [ietf-smtp] DANE penetration for MTA/MTA interactions

2021-03-24 16:30:28
On 3/24/2021 2:12 PM, Viktor Dukhovni wrote:
On Wed, Mar 24, 2021 at 09:50:15AM -0700, Dave Crocker wrote:

DANE has been around for a long time.  I'm curious how much actual use
it gets for email transport.

I think "long time" is an overstatement, because even with the
specification published in October 2015,

DANE was first published in 2012, in RFC 6698.

Even at 2015 -- with RFC 7672, for email -- if operational use is miniscule, more than 5 years later, there is a problem.

    It takes a decade or two
for infrastructure technologies to make major transitions.

In terms of admin and operations, DANE is quite similar to DKIM. It did not take decades for DKIM adoption to become significant.

In the USA, since the only major provider with DANE is Comcast users

Using your start date, that's 6 years later with only one major provider?

Dave Crocker
Brandenburg InternetWorking

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