There seems to have been a problem with forum notification emails and password reset emails not going through.
Thanks for @DrBergie and @Spaffy for letting me know. Sorry @Spaffy I didn’t understand what you meant from your first notification.
I think emails are being sent again. I haven’t identified the underlying cause but will upgrade the forum anyway some time in the next week or so.
Let me know if you stop receiving email from the forum again.
looks like it worked.