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-na...@dirtside.com>wrote: > On Wed, Dec 9, 2009 at 10:18 AM, Sven Olaf Kamphuis > <s...@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 ................ her...@dirtside.com b...@herrin.us > 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> > Falls Church, VA 22042-3004 > >
