Stop Spamming on cpanel server

How to Stop Spamming on cpanel server ?

* Setting in “Exim Configuration Manager”

1. Login to WHM control panel by using root user

2. Goto Main >> Service Configuration >> Exim Configuration Manager

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

4. Sender Verification Callouts = ON

5. Sender Verification = ON

6. Reject SPF failures =ON

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

* Some setting in Tweak Setting

1. Login to WHM control panel by using root user

2. Goto Main >> Server Configuration >> Tweak Settings

3. Initial default/catch-all forwarder destination = Fail

4. Max hourly emails per domain = 200

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

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

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

Thanks