To set Email Quota in cPanel
1. Log in to your cPanel.
2. Go to the EMAIL section and click Email Accounts.
A list of all active email accounts on your hosting will appear.
3. Click on Manage for the email account to set its quota.
The MANAGE AN EMAIL ACCOUNT form will appear.
4. Enter the quota as the Allocated Storage Space for the email account.
5. Scroll to the end and click Update Email Settings.
With it, cPanel will save the settings and the quota for the email account.
Author – Rachel