Method 1 :-
Following steps will guide you how to install ClamAV scanner :-
1. Login in to your WHM and click on Manage plugins
2. Do check mark on ClamAv Connector( Virus Protection for Email and Filemanager Uploads) then click on Go.
3. After installing please refresh then you find calmAV in to your Plugins >> configure ClamAVconnector.
Method 2 :-
Following steps will guide you to integrate Rvskin with Mailscanner for Cpanel:
1. Login to your WHM and click on the Rvskin Manager under the Add-ons option in your WHM.
2. In Rvskin Manager, select the WHM Addon Module Integration from the Integartion option.
3. Within the WHM Addon Module Integration select MailScanner Configuration >> Email Management Tools.
4. Now select Config >> Package Feature Manager >> Default Feature List >> Edit >> MailScanner Configuration >> enable >> edit .