Click on the auto-responders link in the Mail Control area.
Click on the 
button next to the auto-responder that you want to delete. Click on the auto-responders link to return to the auto-responders window to confirm that it has been deleted.
Delete an auto-responder when you no longer need to use it. If you use the auto-responder at frequent intervals, such as an "Out of Office" message, you can modify it to point to a nonexistent email account, such as store@yourdomain.com, and then simply change the account name back when you need it again. Refer to Modifying an auto-responder for more information.
To delete an auto-responder:
Click on the auto-responders link in the Mail Control area.
Click on the button next to the auto-responder that you want to delete. Click on the auto-responders link to return to the auto-responders window to confirm that it has been deleted.