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Re: Last Call: draft-klensin-rfc2821bis

Markku Savela <msa@moth.iki.fi> Wed, 26 March 2008 06:47 UTC

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Date: Wed, 26 Mar 2008 08:45:03 +0200
From: Markku Savela <msa@moth.iki.fi>
Message-Id: <200803260645.m2Q6j3JX024997@burp.tkv.asdf.org>
To: Ned Freed <ned.freed@mrochek.com>
In-reply-to: <01MSUMAAFHKW00007A@mauve.mrochek.com> (message from Ned Freed on Tue, 25 Mar 2008 19:38:33 -0700 (PDT))
Subject: Re: Last Call: draft-klensin-rfc2821bis
References: <20080325133807.GA12616@boreas.isi.edu> <200803252230.m2PMURNF072389@drugs.dv.isc.org> <20080326023244.GB26917@boreas.isi.edu> <01MSUMAAFHKW00007A@mauve.mrochek.com>
Cc: hmdmhdfmhdjmzdtjmzdtzktdkztdjz@gmail.com, Mark_Andrews@isc.org, ietf@ietf.org, bmanning@ISI.EDU
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> From: Ned Freed <ned.freed@mrochek.com>

> You seem to be of the opinion that fallback behavior should be extended to
> AAAA, and you seem to be the first one to express that opinion. (I myself have
> no opinion on how to resolve this other than believing it has to be resolved -
> the present ambigiuty is unacceptable.)

As a private person using the "A record only" way of receiving mail, I
find it useful.

But, the point supporting the stand that it should work for AAAA is:

     If something works and is defined with IPv4, then the same thing
     should always work exactly the same way, when IPv4 is replaced
     with IPv6.

The goal should be to make IPv4 and IPv6 easily replaceable anywhere,
whithout any reduced functionality.

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