You can subscribe for instant email notifications.
- Go to
Control Panel (the link is in the top right corner of the screen)
- Click on the
List Subscriptions (see table on the left)
- Check the desired boxes and select "Instant email notification" at the bottom of the thread listing.
- Click on the Go button to submit.
One problem with subscriptions (unless this has been fixed already) is that when somebody replies to your thread and you get email, subscription is terminated and you need to subscribe again to be informed on the next append.