Sorry everyone. The email@example.com email account was deactivated a long time ago without my knowledge. It has now been reactivated. I just thought I wasn't getting any mail (it's normally forwarded to my personal email).
All email that had been sent to it was deleted when the account was deactivated, so please resend any emails from at least the past year.
Also since I wasn't getting any emails that guests had been leaving comments (which I had to approve), I have disabled comment moderation. Now comments will appear immediately.
Sorry for any frustration this may have caused.
South Mountain Richard