Simple... open up Webadmin, go to the Management Menu, Select Notifications. In the General Tab, configure the options to suit your needs. In the Notifications tab, select the notifications you are looking for.. the ones for uplink / failover are Under the "Base System" category, look at WARN-030 thru WARN-033. Depending on how your email system is setup, you may need to configure an external SMTP server under the Advanced tab.
