Step 1.

Log in to your Rebel account, then select "Products" in the top-left corner. In the top toolbar, you will see "Hosting”. Please select this. 

Step 2.

Click the purple button that reads "Control Panel" for the package you want to go to. This will open the Plesk Hosting OS in a new tab.

Step 3.

In the left hand menu, click "Mail".

Step 4.

A list of all current email addresses will be listed here. Check the box for the email address you would like to delete. 

Step 5. 

Above your emails there will be the option to "Remove", click this. A pop-up will appear and you will need to click "Yes, remove".