[ipv6-ops] Re: mail filtering based on reverse DNS

[Fernando Gont]

On 08/11/2011 12:59 PM, Aaron Hughes wrote:
> While I agree MX servers should have reverse DNS and even though it
> is a problem, I am sure they will be informed soon enough by the
> senders that they are misconfigured, I have also been looking at how
> to cover this for SLAAC and PD/DHCPv6 implementations...
> 
> One thing I have done (which certainly does not always work) is:
> 
> ; Auto respond to reverse queries with any wildcard and a zero. ; *
> IN      PTR     v6host.ipv6.6connect.net. *.0
> IN      PTR     v6host.ipv6.6connect.net. *.0.0
> IN      PTR     v6host.ipv6.6connect.net. *.0.0.0
> IN      PTR     v6host.ipv6.6connect.net. *.0.0.0.0
[....]

Sorry, what's the purpose of this?

Thanks,
-- 
Fernando Gont
e-mail: fernando at gont.com.ar || fgont at acm.org
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1