On Sat, Aug 23, 2014 at 06:31:33PM +0000, Matthew Huff wrote: > Sorry, but it hasn't happened yet. It isn't computationally infeasible, it's > that the implementations on the RBLS haven't caught up. Currently the backend > for the RBLS in many cases are based on DNS resolvers such as bind, etc, > which doesn't have a mechanism to return values for subnets, so until the RBL > users add new features, test and roll them out, currently there is very > limited IPv6 address reputation systems. Until there are, many mail systems > are relying instead on rDNS/SPF/DKIM/DMARC. It's not an unsolvable problem > it's just that it hasn't been implemented.
Caching problems aside you can serve wildcards as long as the IP parts are reversed. Kind regards Philipp Kern
