Do not configure notifications for managed appliances (and remove any existing notifications) if you are using centralized alert management as described in Centralized Notifications .
Use the Appliance Settings: Notifications page to configure event notifications on managed appliances.
To configure event notifications:
Click Settings and then select Appliance Settings.
Click Notifications in the sidebar.
(Optional) Use the controls at the top of the page to define the scope of the changes.
Central Management System (CMS) > Central Management System System Administration Guide Release 11.x > Appliances > Configuring managed appliances > Configuring managed appliances using the Web UI