Can anyone tell me how to check this out to find out of it is working?
You can:
1. Add notes to clean email messages (see the Internet Mail provider settings or Outlook/Exchange plugin ones).
2. See an 'extra' icon in your system tray.
3. Right click the email, choose properties and see the details tab. You will see the 'header' of the message. Will be some added lines like these:
X-Antivirus: avast! (VPS 0422-0, 25/05/2004), Inbound message
X-Antivirus-Status: Clean
Hope this help