Contact Form For HTML Site

index.html
==================================
<!doctype html>
<html>
  <head>
<title>This is title</title>
</head>

<body>
    <h2>Contact with us!</h2>

    <form name="form1" action="form_process.php" method="post" />
        Name: <input type="text" name="name" /></br>
        Email: <input type="text" name="email" /></br>
        Message:<textarea name="textarea"></textarea></br>
        <input type="submit" value="SUBMIT" name="submit" />
    </form>
</body>
</html>

form_process.php
=========================================

<?php
$name=$_POST['name'];
$email=$_POST['email'];
$textarea=$_POST['textarea'];
$to="md.azad1216@gmail.com";
$message="Name: $name \n\n Email: $email \n\n Message: $textarea";

if(mail($to,"Contact From my techtutorial site", $message, "FROM: $email")){
    echo "Thank you $name your messaage has been sent";
}
else{
    echo "Sorry, your messege hasnt been sent";
}
?>