I guess my problem is that I did not understand the instructions on how to fill up the "To" field. I think the "To" field would be the email address of the person who fills up the form. But I can't know the email address of all those people who fill up the contact form. So what email address I put in the field? The point is, the instruction says "In the To field, you can specify the email address you wish the email to be sent to." But I don't know that email address, that is exactly what I am seeking to get from the person who fill up that form, i.e. their email address.
Can you deconfuse me on that issue?