> It seems natural (for me at least) to introduce a new map type > dnsbl: that maps those IP addresses to an action.
That would be amazing! If I get it right this would also deprecate e.g. `reject_rhsbl_client` and `reject_rbl_client`. As a Postfix novice I would appreciate the reduction of configuration parameters, it is sometimes quite confusing to look at a long list of parameters that all do similar thing and trying to spot a difference in its description. MJ