Email Reply to address
$headers = 'From: The Client <'.$emailTo.'>' . "rn" . 'Reply-To: info@mydomain.com';
    $headers .= "MIME-Version: 1.0rn";
    $headers .= "Content-Type: text/html; charset=ISO-8859-1rn";

"1.0" <info@mydomain.commime-version:>

$headers = "From: The Client <".$emailTo.">rn";
$headers .= "Reply-To: info@mydomain.comrn";
$headers .= "MIME-Version: 1.0rn";
$headers .= "Content-Type: text/html; charset=ISO-8859-1rn";

$headers = 'From: The Client <'.$emailTo.'>' . "rn" . 'Reply-To: info@mydomain.com' . "rn";