Is email notifications working?

I have a message thread subscription with "Instant notification". I got replies to the thread, but I did not get an email notification. Can an admin check if this feature is working? It had worked for me in the past. And I checked that my email address is correct.

It looks like you're all set up correctly, are you sure it's not at your end?

Okay. It is working now. My bad. For some reason, I had "Receive Email Notification of New Private Messages" unchecked. After I had checkmarked it, it works again.