On Wed, 20 Jul 2005, Paul A Houle wrote: > Jem Berkes wrote: > > > > >I could also start work on a mod_smtpd_dnsbl if the mentors feel that is > >worthwhile? This would look up a connecting IP address against a blacklist > >and return a descriptive string to mod_smtpd if the client should be > >rejected with an error: "550 5.7.1 Email rejected because 127.0.0.2 is > >listed by sbl-xbl.spamhaus.org" > > > >I'd also like to include support for RHSBL, a newer type of listing by > >domain names from the envelope sender address. That's used by a growing > >number of projects. > > > > > Overall blacklists aren't that effective and cause a lot of false > positives.
The issue is about developing enabling technology. Jem's proposals are for a couple of modules we'd like to see developed. A spamassassin filter is also on the wishlist, but availability of solutions that avoid the formidable spamassassin overhead seem to me a Good Thing. Perhaps the answer is for Jem's modules to have options either to reject outright or to accept but increment a score that can then be aggregated with results from other modules. -- Nick Kew
