I am not receiving emails when i have opted to for new answers.

I have the Q&A plugin installed and after posting a question there is a link at the bottom of the page "Click here to be notified of followup answers via e-mail" and when I click this link it changes to "Stop notifying me of followup answers via e-mail" but I am not notified via email when an answer is posted. Other emails are sent out from my site, including emails for new questions posted being sent to admins. This website is not publicly viewable. Please include enemchik@keeforce.com in any email responses.