Hi Ernst and all !
You have to subscribe to all the forums.
Welcome to the forum, we just started this o ne after having the Yahoogroups for 18 years or so, but yahoogroups has deteriorated to so I put this up.
I'm trying to figure out also how I can get forum posts directly to my email.
Update: Read your earlier post, Ernst - subscribed to each forum individually!
@talia at the top of each forum/thread you can click "subscribe for new replies" and you will get email notifications
Just subscribe to the forums you want emails from.