Just a quick link to a useful Forum Message: http://forum.avast.com/index.php?topic=1647.0
In order to receive an Administrative Email Notification each time a Virus is detected by the Avast Workstation Client, it is necessary to configure the following settings within the “Avast Distributed Network Manager” (ADNM) Console:
 Add an SMTP Alert
The “Net Alert Address” is the Address that will receive the Alert.
At this point, use the “Test” Button to make sure the Alert is properly generated. A “Virus Warning” Test message should arrive at the nominated Mailbox.
 Configure the “On Access Scanning Tasks”
 Configure the “On Demand Scanning Tasks”