How to change the maximum email limit per hour for single domain in a cPanel server?
1. Login to the server as root via SSH .
2. Open the file “/var/cpanel/users/username”. username is the cPanel user name of a domain.
For Example: My domain is mydomain.com and the user name is mydom. Now, I need to open the file mydom.
4. Add an entry MAX_EMAIL_PER_HOUR-[domain]=number to the file “/var/cpanel/users/username”.
mydomain.com >> Domain name
600 >> Email limit per hour. You can change according to your requirement.
5. Save the file and execute the following scripts to make the changes in effect.