What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
If I understood you correctly you want to change Email address on which you are getting email Notifications when your form is submitted.
You can do that inside of Email Notification settings by changing Recipient Email address.
Also inside of this guide you can find how to properly Change and Test a New Email Recipient Address:
Hope this will help. Let us know if you need further assistance.