I'm basically looking for such an option - for all intents, if a domain is not, for some reason, in the RBLs, one could manually add the domain into such a list. In particular, I'm looking to do this to hostwinds.net and bluemountain14.com, as they do not seem to test positive in the RBLs.
Or, maybe I'm doing it wrong. In any case, is there any way that exists to do this? -Dennis