Arrogant RBL list maintainers

Mike Lieman mikelieman at gmail.com
Wed Dec 9 11:11:29 CST 2009


Is there an RFC detailing that specific text strings must be used for static
v. dynamic addresses?

I can understanding keeping rDNS in sync, but that's not the issue here, is
it?

On Wed, Dec 9, 2009 at 11:57 AM, William Herrin
<herrin-nanog at dirtside.com>wrote:

> On Wed, Dec 9, 2009 at 10:18 AM, Sven Olaf Kamphuis
> <sven at cyberbunker.com> wrote:
> > We've noticed that Trend Micro "mail-abuse.com" just "assumes" ips are
> > dynamic by default,
> >
> > because they just assume that working, rfc compliant, reverse dns that
> > just-so-happens to be automatically generated would indicate dynamic ip
> > space.
>
> Sven,
>
> Which is it? By default or because it looks automatically generated?
>
> By default would seem to be a problem. Automatically generated, not so
> much.
>
> If you haven't made the effort to set up and secure a mail server then
> you shouldn't be talking smtp to the hosts mail-abuse.com is used to
> protect. If you haven't bothered to set the reverse DNS to match your
> server's name then you haven't made the effort, at least not with a
> modicum of competence.
>
> Regards,
> Bill Herrin
>
> --
> William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
> 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
> Falls Church, VA 22042-3004
>
>



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