PHP联系表单不发送电子邮件。 不确定语法或服务器

Hey guys so I have an HTML document with a contact form I created and it is not working. I have the PHP in a seperate PHP file like so:

HTML:

<form class="form-horizontal" action="form_process.php" method="post" name="contact_form">
    <div class="form-group">
        <label class="col-sm-2 control-label white-color">Email</label>
        <div class="col-sm-10">
            <input type="email" class="form-control" name="email" placeholder="Email" required>
        </div>
    </div>
    <div class="form-group">
        <label class="col-sm-2 control-label white-color">Name</label>
        <div class="col-sm-10">
            <input type="text" class="form-control" name="name" placeholder="First Name" required>
        </div>
    </div>
    <div class="form-group">
        <label class="col-sm-2 control-label white-color">Message</label>
        <div class="col-sm-10">
            <textarea class="form-control" rows="5" placeholder="Type your message here!" name="message" required></textarea>
            <button type="submit" class="btn btn-default btn-lg text-center" id="send-btn" name="submit">Send</button>
        </div>
    </div>
</form>

And here is the PHP:

<?php

if (isset($POST['name']) && isset($_POST['email'])) {

    $email = $_POST['email'];
    $name = $_POST['name'];
    $message = $_POST['message'];

    $to = 'j_goris@live.com';
    $subject = 'JorgeGoris.com Form Submission';
    $text = "Name: ".$name."
"."Email: ".$email."
". "Wrote the following: "."

".$message;

    if(mail($to, $subject, $text, "From: ".$name)){
        echo '<h1>Thanks! I will get back to you shortly.</h1>';
    }
    else {
        echo 'Sorry there was an error! Please try again.';
    }
}?>

This is my first time tackling PHP contact forms. I uploaded all my files to my server and still no dice. Can you guys see whats wrong?

Replace:

$POST['name']

to:

$_POST['name']

Replace:

if(mail($to, $subject, $text, "From: ".$name)){

To:

if(mail($to, $subject, $text, "From: ".$email)){

Full Code:

<?php

if (isset($_POST['name']) && isset($_POST['email'])) {

    $email = $_POST['email'];
    $name = $_POST['name'];
    $message = $_POST['message'];

    $to = 'j_goris@live.com';
    $subject = 'JorgeGoris.com Form Submission';
    $text = "Name: ".$name."
"."Email: ".$email."
". "Wrote the following: "."

".$message;

    if(mail($to, $subject, $text, "From: ".$email)){
        echo '<h1>Thanks! I will get back to you shortly.</h1>';
    }
    else {
        echo 'Sorry there was an error! Please try again.';
    }
}
?>