JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Upon checking the email firstname.lastname@example.org and the settings of your form, everything seems to be setup properly. Our mail log shows no errors or failed email attempts.
Your email service provider might be blocking our JotMail IP addresses or the domain names or our server. You need to contact them and whitelist our IP addresses and domain names. You can check this guide on how to do that: http://www.jotform.com/help/145-Whitelisting-JotMails-IP-Addresses.
You can also check this guide for additional troubleshoot: http://www.jotform.com/help/208-How-to-setup-email-alerts-to-prevent-email-bouncing-related-issues.
I hope this helps.