If you are certain that you won't need your email account anymore, you can delete it in your website's edit mode.
Please note that you should backup important emails before deleting your email account.
Deleting your email account
- Log in to your Jimdo account and choose the desired website
- Click Edit to enter your Jimdo Creator website’s edit mode
- In the menu, go to Domains & Email > Email Accounts
- Click the trashcan icon next to the email account you'd like to delete
- Read the note that follows, then click on Yes, delete my email account