I'm using zen.spamhaus.org and cbl.abuseat.org and everything was OK, zen was able to block 900~1200 spams per day. Abuseat almost does not hit a spam because usually all spammers are cought in the first zen.spamhaus RBL.

But since 2 weeks ago, or so, Zen is only hitting ~500 spams per day and the spam in mailboxes increased.

Other thing, which I don't know if it has relation, my boss local email is hitting as spam. Which is the last person that I want to have problems with the email. I tried to add his email to the "salocal.cf.in" whitelist.

This shall be a problem with Zen?