After you have created a rule for an alert, you can modify or delete it at any time.
To modify or delete a rule for an alert
To modify or delete a rule for an alert for yourself, hover over the email address associated with your account and click the My Profile link.
If you want to modify or delete an alert rule for another user, click the Users tab and select the user's name. You must be an administrator or an account administrator to execute this action.
Click the Alert Preferences tab, and then expand the contact method for the alert rule that you want to modify or delete.
To edit an alert rule, click the rule name and edit the settings in the Update rule dialog box.
Click Save to save your settings.
To delete an alert rule, click the Delete in the Actions column, and then click OK.