It works for me, as far as I can tell...

I'm guessing you've already checked the spam filter? For some reason I had an issue about a month ago where a lot of forum notifications got caught in the spam filter. No idea why.

I thought I had checked spam filter, but I found the notifications were filtered as spams actually :(

I guess I accidentally marked a community notification as a spam, maybe. Thanks for your hint!

I'm fairly sure that I never flagged any community notifications as spam, but our "intelligent" spam filter decided there were too many, I guess, so suddenly there were more and more of them going into the spam filter. I suspect it didn't help that some of the notification mails contained stuff that looked like Python code.

For what it's worth, I had the exact same problems with the Safe Partner newsletter etc. Very annoying.