This forum is only for reproducible bugs with csf and lfd (i.e. not iptables problems, lack of understanding how to use a feature, etc). Posts must be accompanied with full technical details of the problem and how it can be recreated. Any posts not adhering to this, or not considered bugs, will be moved to the General Discussion (csf) forum.
I realized today, that SMTP_BLOCK is not working for IPs other than main server IP. I have exim running on main server IP (it is cPanel box), but all sites is working on other IP. SMTP_BLOCK is not working for additional IPs, it is only working for main server IP.