Looking for a notification plug-in

I’ve developed a site that allows people to submit questions with no obligations (no required registration, subscription, etc.). What I need is a plug-in that will notify admin (preferably via email) when a new question is submitted.

Most plugins I’ve found will notify new user registration, posts, or comments or the like. I’m using a heavily stripped down version of WPMU’s Q&A plug-in as the backbone of the Q&A system.

The plugins I’ve tried won’t trigger notification when a Q&A “question” is submitted.

I’m the only site admin so a plugin that could register any change to the site seems like a solution, but I don’t know one with that functionality.

If anyone has a recommendation or suggestion, I’d appreciate it. Thanks