After a lot of checking and debugging I don't have a clue what's going on. The last email that I received from nopcommerce for my forum subscriptions was on Aug 29th. I have checked my junk, my email in my profile, everything that I can think of. Is anyone else having the same issue?
Just tested it. Everything works fine. But I see several emails not being sent for some reasons. I'll reset their "Send attempts" to send them one more time