Click on the Autoresponders link in the Mail Menu area.
Click on the 
button next to the autoresponder that you want to delete. Click on the Autoresponders link to return to the autoresponders window to confirm that it has been deleted.
Delete an autoresponder when you no longer need to use it. If you use the autoresponder 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 autoresponder for more information.
To delete an autoresponder:
Click on the Autoresponders link in the Mail Menu area.
Click on the button next to the autoresponder that you want to delete. Click on the Autoresponders link to return to the autoresponders window to confirm that it has been deleted.