I've been touching up on the wiki as spam zimbra
Improving Anti-spam system - Zimbra :: Wiki I used Razor2, Pyzor and dcc.
Only, my internal emails are falling into SPAM, I glanced at the forum found this solution
Local mail marked as spam
I use zimbra 6.0.7 Red Hat 5.4 x64 Bits
Only in 50_scores.cf there this line:
FH_DATE_PAST_20XX score 0.0
How do I release my internal network mail box spam.
[root@lnxmail conf]# su - zimbra
[zimbra@lnxmail ~]$ zmprov gs `zmhostname` zimbraMtaMyNetworks
# name lnxmail.xxx.xx.xxx.xx
zimbraMtaMyNetworks: 127.0.0.0/8 11.0.0.0/8 172.16.1.0/24 10.1.0.0/24 11.1.1.0/24 10.69.0.0/16