Do not use RBL for my networks

[Peter Tselios]

Hallo,

I am quite new to Amavis + Spamassassin.
My setup is Postfix + Amavis + Spamassassin.
I have no RBL checks on Postfix and I use Amavis + Spamassassin to add the score of the RBLs to the total score.
However, the majority of my IPs are blacklisted for various reasons. Now, what I want is "simple". 
I want to have a fixed score of "0" (zero) for emails coming from my networks. Is that possible?
If it is possible, are there any guidelines on how to configure amavis to do that?

Do you want more data (eg amavis conf ?)

Thanks,
Peter