1. is indeed quite a problem. It would detect most people rummaging idly through the web interface, but not much more. 2. is not quite relevant. I'd say the id

1. is indeed quite a problem. It would detect most people rummaging idly through the web interface, but not much more. 2. is not quite relevant. I'd say the idea is to know that someone has accessed the email. Not who. As long as you can be sure that it's not yourself, something bad is happening anyway.