Re: [DNSOP] dnsop-any-notimp violates the DNS standards

"John Levine" <johnl@taugh.com> Mon, 09 March 2015 16:44 UTC

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Date: 9 Mar 2015 16:44:23 -0000
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From: "John Levine" <johnl@taugh.com>
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Subject: Re: [DNSOP] dnsop-any-notimp violates the DNS standards
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In article <20150309110803.4516.qmail@cr.yp.to> you write:
>My "qmail" software is very widely deployed (on roughly 1 million SMTP
>server IP addresses) and, by default, relies upon ANY queries in a way
>that is guaranteed to work by the mandatory DNS standards.

All the qmail installations I know patched that about a decade ago to
be a CNAME lookup, because the ANY query caused interop problems.

It's not a very strong argument in favor of ANY.

R's,
John