Need to be able to set the reply-to: address

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I am using a WordPress plugin called LearnDash that allows the tutor to send emails to students. I do not want the student to be able to see the instructor’s email address.
I have set up WP mail and it is working but the reply-to: address is visibly the instructor’s WordPress login email address.
I have set the from to read yourinstructor<no-reply@mydomain.com>
but I cannot change the reply-to: address.
Help please?