Follow the steps below to change the max-children limit in the spamd (Apache SpamAssassin™) service.
- Log in to WHM as the root user.
- Navigate to the following menu: Home »Email »Spamd Startup Configuration
- Update the value in the text box labeled "Maximum Children"
- Click the "Save" button.
More information regarding this menu and option can be found in the cPanel & WHM documentation.