I have the same issue… Where In preferences is it? I don’t see any options for this. I have deselected everything and still get about 20 emails a day. I would prefer just one email.
I really miss the daily email for watched forums as well. Now I turn off post notifications and just bookmark ‘watched forums’ scanning the threads with new posts. Once I’ve looked at all I’m interested in, I mark the forum as ‘read’. Then the next time I visit only new posts are highlighted.
I also miss the evening email digest and don’t love the 20 emails a day. Is the digest no longer an option? I have played with the preferences to no avail.