Testing notifications on this reply, but whom is your e-mail host? Checked your spam/junk messages folder?
My notifications bounce between my Inbox and my Junk folders. All depends upon the position of the moon.

I did get a notification in my e-mail from my reply, so the back end mechanics seem to be working at least...
Depending on what e-mail service you use, see if you can add "
valkyrieforum@gmail.com" to the trusted senders list to make sure it doesn't get sent to the junk folder.