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Date: Mon, 15 Oct 2007 13:43:00 +0900
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From: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?=
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To: bh@izb.knu.ac.kr
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Cc: postmaster@freebsd.org, net@freebsd.org
Subject: Re: unknown problem with mx1.freebsd.org
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At Fri, 12 Oct 2007 18:54:11 +0900,
Byung-Hee HWANG <bh@izb.knu.ac.kr> wrote:

> Let me say this.. I just like all stuff around IPv6. And now I need one
> native IPv6 address for my FreeBSD box, which is email gateway. There
> was unknown problem related to IPv6 area between my FreeBSD box
> [2002:9be6:9d5d:1::1] and mx1.freebsd.org [2001:4f8:fff6::34]. 

I don't know if mx1.freebsd.org delays or refuses delivery when DNS
reverse lookup fails for the source of incoming connections, but
at least there are some problems in the delegation under
2.0.0.2.ip6.arpa: out of 4 authoritative servers,
ns-arin.6to4.nro.net seems to be down, and ns-ripe.6to4.nro.net
returns SEVFAIL.  You should probably contact dns-admin@apnic.net,
which is the maintainer mail address according to the SOA record of
the 2.0.0.2.ip6.arpa zone.

					JINMEI, Tatuya
					Communication Platform Lab.
					Corporate R&D Center, Toshiba Corp.
					jinmei@isl.rdc.toshiba.co.jp