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No, I checked the notification for one of your forms: http://www.jotformpro.com/form/51520825159959, and the recipient email was in bounce list: https://www.jotform.com/help/262-How-to-Remove-Your-Email-Address-from-Bounce-List
That's why you are not receiving notifications, you may white-list our domain names, if the issue continues, as we use Amazon SES method for "firstname.lastname@example.org" sender:
Please open a new thread if you need anything else, we will be glad to assist you.