Matthew Stith via Unbound-users:
Unbound does not currently provide support for Response Policy Zone (RPZ) but it has been stated in the past on the list that support for it is on the roadmap of development. Is there any update on when RPZ will be implemented and if there is any alpha/beta version of Unbound with RPZ that needs some testing done?
unbound source come with contrib/fastrpz.patch That's a patch that you may apply if you compile unbound yourself. It you do that, than unbound is able to talk to a fastrpz daemon provided as commercial product by farsightsecurity.com I currently build unbound with that patch enabled but don't use fastrpzd on any resolver. So all I can say: it compiles and don't hurt. Andreas