Email sending limits and spam protection in WHM

How to set the max hourly email limit for VPS/Dedicated server through WHM:

1) Login to the WHM of the server as root

2) Click on File:Tweak settings.JPG Under the File:Serv config.JPG section

3) Click on the tab

4) Scroll down to the field

5) Change the field from "600" to whatever you wish (Keeping in mind the load on the server)

6) Scroll down and click File:Save.JPG