To use the activity approver email notification feature, you must configure the CiscoWorks email server. The email configuration option is provided in the Advanced installation, not the Typical installation of Common Services. If you did not configure the email server during installation, you can do so from the CiscoWorks desktop by selecting VPN/Security Management Solution > Administration > Common Services > Preferences
http://www.cisco.com/en/US/products/sw/cscowork/ps2330/products_quick_start09186a0080210b9f.html