Spamassassin com dificuldade

Boa Tarde,

Pessoal,

Estou com um problema. Eu configurei o spamassassin porém, está vindo em média 95 spans e 5 emails no dia válidos.
Alguem poderia mi dar uma mão com as configurações dele.
Meu local.cf esta dessa forma.
Foi configurado via web no site http://www.yrex.com/spam/spamconfig.php



# SpamAssassin config file for version 3.x
# NOTE: NOT COMPATIBLE WITH VERSIONS 2.5 or 2.6
# See http://www.yrex.com/spam/spamconfig25.php for earlier versions
# Generated by http://www.yrex.com/spam/spamconfig.php (version 1.50)

# How many hits before a message is considered spam.
required_score 5.0

# Change the subject of suspected spam
rewrite_header subject *****SPAM*****

rewrite_subject 1
# Encapsulate spam in an attachment (0=no, 1=yes, 2=safe)
report_safe 1

# Enable the Bayes system
use_bayes 1

# Enable Bayes auto-learning
bayes_auto_learn 1

# Enable or disable network checks
skip_rbl_checks 0
use_razor2 1
use_dcc 1
use_pyzor 1

# Mail using languages used in these country codes will not be marked
# as being possibly spam in a foreign language.
# - english
ok_languages en

# Mail using locales used in these country codes will not be marked
# as being possibly spam in a foreign language.
ok_locales en




Tem como ter uma lista de endereços de spam para ajudar a barrar ?