Also check these -
How to Configure Symantec Endpoint Protection Manager to Send Email Alerts
http://www.symantec.com/business/support/index?page=content&id=TECH104394&locale=en_US
How do I setup email alerts in the Symantec Endpoint Protection Manager (SEPM)?
http://www.symantec.com/business/support/index?page=content&id=TECH105865&locale=en_US
Creating notifications in the Symantec Endpoint Protection Manager
http://www.symantec.com/business/support/index?page=content&id=TECH91622&locale=en_US
Regards,
Thomas