Hi,
thanks for this plugin, it looks very promising :)
What would be the icing on the cake to me is being able to define the checked DNSBLs - there simply doesn't seem to be a plugin that allows you to do that :(
Of course, one could hack one of the existing plugins that check one blacklist or even hack your plugin to check the ones i'd like - but having that as an option would make it stand out even more i guess.
Thanks for considering :)