Ok...I think I figured this out...when viewing a forum/post, at the top of the screen you'll see this:
Click it and it will switch to subscribe. This should eliminate the email notification for every post made to the specific thread. If you decide you'd like to renew the notification, just click on the subscribe button.
If you start a thread and don't want to receive the notification, as soon as you post the thread, go back and click the
unsubscribe button so that it switches to
subscribe. Hope this helps...
Let me know if this works...