Add a die statement after the email is sent to see if there is an error message. If it isn't sending there must be a problem, you just might need to debug a little to find it.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.