Stop Spamming on cpanel server

There are number of ways, but you must enable/disable some Tweaks on cpanel server.

Setting in Exim Configuration Manager

• Login to WHM control panel by using root user


• Go to Main >> Service Configuration >> Exim Configuration Manager


• Enable RBL filtering by Basic Editor >> RBLs >> switch to “On” and if you like you may additional RBL from manage option.


• Sender Verification Callouts = ON


• Sender Verification = ON


• Reject SPF failures =ON


• Then save all the configuration this will stop most of spams in the server

Some setting in Tweak Setting

• Login to WHM control panel by using root user


• Goto Main >> Server Configuration >> Tweak Settings


• Initial default/catch-all forwarder destination = Fail


• Max hourly emails per domain = 200


• Count mailman deliveries towards a domain’s Max hourly emails = ON


• Maximum percentage of failed or deferred messages a domain may send per hour = 60%


• Then save all the configuration this will stop most of spams in the server.