Before deleting your email account, we suggest you take a backup of your important email messages and remove the email address from all the websites, forms, online accounts, etc. or replace it with a new one.
For delete email account in cPanel follow the below steps,
1. Login to cPanel account.
2. Go to the EMAIL section and click on Email Accounts option.
3. Select the email account which you want to delete and click the Delete button.
4. After click on the DELETE button, the email account will be permanently deleted.
5. A success message will be shown after deleting the email account.