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.
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3. Select the email account which you want to delete and click the Delete button.
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4. After click on the DELETE button, the email account will be permanently deleted.
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5. A success message will be shown after deleting the email account.