I have had update notifier installed for a while, but it never sends me emails.
I have checked my spam filters. I even added a second address (gmail) and I don't get it there.
Can you add a 'test email' button that generates an email that is EXACTLY THE SAME as a normal email, so that I can:
1) Verify it works immediately, instead of having to wait for something to update.
2) Train my spam filters, if that is indeed the problem.