Not getting Moderation required emails

Hi, I have a question about one of my bloggers not getting the Moderation Emails from the server. I checked everything that I can think of, but the system seems to not send my author/blogger a request for moderation email. The only thing I can think is what if I check the "Receive System E-mails" to Yes, under the blogger Account details. However, I don't want this blogger to get all the system emails that a Super User gets. Anyways, any ideas on what is going on?