Can't send emails: IP blocked by Spamhaus
Some of my emails are blocked because my IP is blacklisted by Spamhaus. The reason is: IP Address 198.x.x.x is listed in the CBL. It appears to be infected with a spam sending trojan, proxy or some other form of botnet. This IP is infected (or NATting for a computer that is infected) with a spambot we have not yet been able to identify. How can I found where the problem is? What logs can I check? I'm using zpanel.