One page controls every email this platform sends you.
Click here for your Notifications page
The setting most people want
Turn everything off except mentions. That way the only emails you get are the ones where somebody typed your name -- including my replies to your questions.

If you see settings further down that page for individual courses, you can mute those too. You will still get an email when someone @mentions you.
Turning it down for one lesson instead of all of them
Every lesson has a bell icon in its comment area, with three choices: follow everyone's comments, follow only mine, or follow nothing. So you can stay close to the two or three lessons you care most about, and hear nothing from anywhere else.
If you are in one of my group programs
The forum has categories, and you can choose which ones email you. Click "Forum" rather than "Feed" to see them -- announcements, buddy requests, and so on -- then pick the few you want to hear about.
Not seeing your courses listed on the Notifications page?
That usually means the page loaded before your enrollments did. Reload the page, and if they are still missing, comment below and I will take a look.
I turned off notifications except those mentioning me, and because I put a number of posts yesterday I'm still receiving a large number of "individual" emails. I
Is it possible to have a daily digest, rather than an email for each "like", etc. ?
Thanks.