Comment notification

Hey guys,

I run a business directory which makes use of users comments as reviews on businesses listings.

I need an email to be sent after a review is left (to the user who wrote the review) saying thank you for your review.

How can I achieve this? I’ve searched for plugins but cant find one that fits the bill.. Only to send notifs to a wp site or page owner.

Please let me know, it’s essential. It will be very much appreciated

Thanks