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I am not sure if I have understood your question correctly. Do you mean to change the email address where you want to send the submission emails?
You will have to actually change the "Recipient Email" address of your form's notification email alert. The following guide should help you: http://www.jotform.com/help/41-Finding-out-E-mail-Address-used-for-submission-notifications
Hope this answers your query.
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