Hey Imar,
Locally my project runs fine, the e-mails from chapter 9 are being sent just fine, I used your lessons in AJAX to have a "Please Wait..." message, all of that is working fine locally.
I now uploaded my website to test it live, but this E-mail feature doesn't seem to be working.
Here is what I have:
http://www.jdlferreira.somee.com/index.aspx
You can access the contact form by pressing "Contact Us", on the left. The "Please Wait" message shows up for less than a second and poof, no e-mail sent.
Maybe I'm missing something here (from locally to hosting the web project), but I'm kinda fresh out of ideas, I was thinking it might be something I missed doing on the web.config file before uploading?