How do I have it so that the sent by is my customer email instead of noreply@jotform.com?

I am having trouble with my desk system (Zoho Desk) because any customers who write into my support email via my form are being associated to the same email address, noreply@jotform.com. I want to set it up so that the email shows as though it is coming from the individual, how do I perform this?

Thank you

You can have the Customer's email only by configuring Mandrill's SMTP in the form. Unfortunately, Mandrill is no longer free and is already part of MailChimp's core apps. 

Guide here: https://www.jotform.com/help/240-Set-Email-Field-as-the-Notification-Sender-Email-Address-with-Mandrill.