SPF and Domain Keys

[Jeferson Pessoa Santana]

Hello Spamassassin,

I'm back with new doubts hehehe. I've been reading a lot of articles and 
e-mails from the list about SPF and Domain Keys but I don't know how to 
use they in SpamAssassin. I'm using SpamAssassin 3.1.0 and I already 
installed the Perl Module Mail::SPF::QUERY. There's a new config lost on 
my server or I need to put things on the local.cf?

Thanks for the attention

Jeff