Click the drop-down beside your icon at the top left corner of any forum page and choose Preferences. Go there and make sure you still have email notifications turned on. I have most of mine turned off because I don't want dozens of emails every day.
No one has an idea to fix this issue. There are two computers on my table if I get an email notification from forum in my main computer same time I will get in my 2nd computer as well therefore there is no issue with computer.
Hello Maha's Email
are you still following your questions