Is there any way to check on the person who submitted not receiving the confirmation email?

Her address is
netplayer1@bellsouth.net

You can check Email History and verify if the autoresponder email was sent to the recipient or not. According to your Email History, that email address is in the bounce list.  I have removed it from the bounce list now.

The bounce list is a feature wherein the email address will be added in the list if the emails coming from JotForm are being rejected by the email recipient. One of the purpose of the bounce list is to determine if there are any errors in sending emails to the recipients. Here are some examples:

1. Mailbox is full
2. Email address is non-existent
3. Incorrect email address
4. Blocked by your email provider

Please check these related guides: 
https://www.jotform.com/help/262-How-to-remove-your-email-address-from-bounce-lists
https://www.jotform.com/help/293-How-to-View-All-Your-Form-Email-History 

Hope that helps. Thank you.

thank you
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You are welcome. If you need further assistance, please let us know. Thank you.