Changing Reply-To address?

I have a form in which users can type in (from, to, subject, message) to send an email. How is it possible to set up a script so when my PHP processes the form to send an email, the reply-to email is whatever I set it to?

 

When you build the headers, specify the Reply-To: variable.

Note that depending on the configuration of your mail server, there may be limitations on what you can set this value to.

 

I was guessing it has something to do with headers but didn't know exactly what to call it. But, Thanks! It works perfectly!

 

A Mail function has the following

$to = "x@y.com";

$subject = "This is the Subject";

$body = "This is the body";

$headers = "Reply To: email here";
$headers .= "From: email here";
//You also need your type of email here, HTM, TXT ect

then mail($to,$subject, $body, $headers);