[AusNOG] IPv6 reverse DNS and Mail ...

[Peter Tiggerdine]

So we should all just ignore RFC's because our largest trading partner
decide they don't to play by the same rules as the rest of the world.. WTF?.

How exactly is it more difficult than forward records?

On Mon, May 20, 2013 at 3:06 PM, Mark Delany <g2x at juliet.emu.st> wrote:

>
> On 20May13, Daniel O'Connor allegedly wrote:
>
> > I wonder how much spam you block by rejecting submissions from hosts
> with incorrect/unconfigured reverse DNS entries.
> >
> > I also wonder how much ham you block incorrectly..
>
> I wonder as well. Last time I looked very little of China's IP
> allocations have reverse entries and, given their GDP is said to reach
> the USA's in a few years and given they are Australia's largest
> trading partner, blocking or quarantining based solely on a lack of
> reverse is going to mis-identify a lot of genuine Chinese traffic.
>
> I know people love to see reverse entries and it makes traceroutes far
> more interesting, but since they aren't essential to the function of
> anything, maintenance of reverses has always, and will always, be
> haphazard at best. Much as the Internet Police would like to believe
> otherwise.
>
>
> Mark.
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