Doesn't the SpamAssassin URIBL stuff solve a similar problem ? That is: foo.example.com -> example.com foo.example.ac.uk -> example.ac.uk
Check out "RegistrarBoundaries.pm" in SpamAssassin - it has the relevant lookup table. Not perfect but might help. As for the case of: foo.example.ac.uk # bunch of spammers bar.example.ac.uk # well behaved non-spammers then this would be considered as "example.ac.uk", and we'd expect the abuse team for example.ac.uk to deal with any problems, regardless of whether there's devolved management, delegated DNS zones or whatever. -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
