Re: [dbound] The proposals before us

"John Levine" <johnl@taugh.com> Sat, 03 September 2016 20:58 UTC

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Date: 3 Sep 2016 20:57:49 -0000
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From: "John Levine" <johnl@taugh.com>
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Subject: Re: [dbound] The proposals before us
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>* ODUP (
>* John Levine's proposal (
>* SOPA (

My draft expired, so I just uploaded a new -01 which strips out some
of the non-mail stuff but doesn't change the design otherwise.

I'm hardly unbiased, but here's my take on it:

ODUP: first party publication with TXT records, can work but has a lot
of stuff not useful for the mail application.  Number of queries
varies but seems usually to be the number of components in the name.

Mine: minimal design.  Number of queries is typically the number of
boundaries (not components) or that number plus 1, which in practice
seems unlikely to be more than 2.  The draft specifies a new RR with
first party publication but Variations section shows how TXT rather
than RR or third party rather than first party would work.

SOPA: can do all sorts of cool stuff, but the need to put RRs at each
name seems like a show stopper to me.