Issue with Action > Email (Reply-To address)

Hello, I suspect I found a bug. I was trying to have our contact form send the user an email from a specified email address after they click on Submit. The mail is sent out, but the sender email address is the same as the email address the user filled in. So if they try to respond to the email, they will be responding to themselves.

How do I set it up so that when they click on respond, they are actually responding to the email address I defined (the address the automatic email is supposed to be sent from)?

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