Add Razor or Pyzor ?

[Noc Phibee]

Hi

one question :
I have added today DCC to my config (anyone know where i can know if the 
request
are sent to the dcc server ?).

Now, i want add Pyzor or Razor ;=)
What is, for you the best solution for best result ?

SA 3.0.4 automatiquely check SORBS,RBL, SpamCop and other no ?

Thanks bye