Re: [ietf-smtp] Some RFC2142 adoption data

John C Klensin <john-ietf@jck.com> Fri, 11 February 2022 21:18 UTC

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Date: Fri, 11 Feb 2022 16:18:11 -0500
From: John C Klensin <john-ietf@jck.com>
To: Alessandro Vesely <vesely@tana.it>, SMTP Interest Group <ietf-smtp@ietf.org>
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Subject: Re: [ietf-smtp] Some RFC2142 adoption data
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--On Friday, February 11, 2022 19:46 +0100 Alessandro Vesely
<vesely@tana.it> wrote:

> Hi all,
> 
> The European Commission has published a comprehensive study on
> DNS abuse:
> 
> Study on Domain Name System (DNS) abuse, 2022
> https://data.europa.eu/doi/10.2759/616244
> 
> Study on Domain Name System (DNS) abuse : technical report.
> Appendix 1, 2022
> https://data.europa.eu/doi/10.2759/473317
> 
> Chapter 18 of the Appendix (2nd link above) contains data on
> role addresses. They also tested the RNAME address of SOA
> records of 1M Tranco domains.  I only attach the Venn diagram.

One thing I find extremely interesting about this is that,
independent of what RFC 2142 adds to the list, there has been
one specific role address -- postmaster-- that has been
_required_ since at least the time of RFCs 822 and 1123 and it
apparently was not adopted heavily enough to make that chart.
I have no idea what that means except that it leaves me a bit
suspicious of the data and the means used to obtain it.

    john