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Re: Fwd: [website form email]: No reverse DNS for IPv6

From: Wytze van der Raay <wytze AT cacert.org>
To: cacert-sysadm AT lists.cacert.org, cacert.org AT moritz.augsburger.name
Cc: cacert-support AT lists.cacert.org
Subject: Re: Fwd: [website form email]: No reverse DNS for IPv6
Date: Sun, 25 Oct 2009 22:14:56 +0100
Authentication-results: lists.cacert.org; dkim=pass (1024-bit key) header.i= AT cacert.org; dkim-asp=none

> ---------- Forwarded message ----------
> From: Moritz Augsburger
> Subject: No reverse DNS for IPv6
>
> I highly appreciate that you use IPv6, but perhaps you could also set a
> PTR RR for your IP?
>
> For anti spam reasons I block Mails from IPs without Reverse DNS:
> NOQUEUE: reject: RCPT from unknown[2001:7b8:3:9c::245]: 450 4.7.1 Client
> host rejected: cannot find your reverse hostname, [2001:7b8:3:9c::245];
> from=<returns AT cacert.org
>
> <mailto:returns AT cacert.org>>

The CAcert webserver has been running for a short period with the IPv6
address mentioned above, basically to perform some testing. The address
was inadvertently left enabled after completion of the test, it has now
been disabled again.
In the near future we will support IPv6 access, and of course setting up
appropriate AAAA and PTR RR records will be part of that.

Thanks for your accurate report!
Regards,
-- wytze

Fwd: [website form email]: No reverse DNS for IPv6, J. Steijlen, 10/22/2009
- Re: Fwd: [website form email]: No reverse DNS for IPv6, Wytze van der Raay, 10/25/2009
  - Re: Fwd: [website form email]: No reverse DNS for IPv6, Ian G, 10/25/2009
    - Re: [website form email]: No reverse DNS for IPv6, Mendel Mobach, 10/25/2009