Can we please have this deamon running as first spam-measure when enabled?
It reduces the load on the server a lot and this deamon alone kills most of the spam.
However not everybody likes it as for non-whitelisted senders can take e.g. 5~10 minutes before the mail is delivered.
My users on my previous server knew this was running and where very happy with it

As I used only that deamon against spam, nothing else, it's that simple and powerfull.