Not getting notifications when new answer was posted

Click the 'Thread tools' button, then click 'Subscribe to this thread' for the threads where you want to be notified.

Email notification failures are, sadly, rather common. Sometimes it seems to be a temporary sitewide problem, sometimes it's a settings issue, and other times it is specific to an email address. Personally, I can get notifications sent to my personal email address, but they stopped functioning with my work email address a year or so ago. I would advise following all of the advice you receive here, but don't be too discouraged or surprised if you still have issues.

Here are a few of the many existing threads on this topic; perhaps there will be some useful suggestions or explanations therein:
https://www.excelforum.com/the-water...fications.html
https://www.excelforum.com/suggestio...ot-noti-4.html