Resolved Recommended RBLs / maximum?

[mdde]

Hi,
just wanted to ask, whats a good Value of RBLs to set into Plesk?
I dont want to have performance Issues.
Is there some Value for example "you should only use a few RBL Lists" ?
Or can i use to 10 Rbl Lists without worries?

And:
Is it ok if i set those RBL Lists within the "MagicSpam" or should i set those in Plesk Mail Settings at the bottom with ;;;; sepperated? Just wondering if this makes a difference with Performance i.e....

 

[Bitpalast]

Impact on performance is minimal. The only thing that could happen is that it takes a few seconds for the check, but these seconds are not CPU time on your system, but latency/waiting time on responses from RBLs.