You can unsubscribe from all LinkedIn email, but you'll still get email for any new category they invent later. So I keep having to do this every few months. For example: "endorsements" became a thing and suddenly I had to turn that pointless spam off too.
I expect they'll invent a new product which involves opting everyone in.
They also started sending me push notifications telling me that people that I follow started following other people. I have no idea why they think I'd want to know that. It took probably ten minutes with their app to figure out how to disable that.
I expect they'll invent a new product which involves opting everyone in.