Configure E-mail Notification.
The Alert Manager allows you to define an special e-mail address where you
would like to receive alert messages as they occur. To enable alert
notification by e-mail you must select the Alert->Configure menu and enter
your notification e-mail address as well as the outgoing mail server address.
This is the same server you use for your standard e-mail software, usually its
name starts with "smtp." or "relay.".