[PHP] simple mailer

<title>Simple Mailer</title>
<style type="text/css">
    input[type=submit] {
        padding:5px;
        width:100%;
        background:green;
        border:1px solid green;
        border-radius:3px;
        font-weight:bold;
        color:#fff;
        outline: none;
    }
    textarea {
        resize:none;
        border-radius:3px;
        height:100px;
        width:100%;
        outline: none;
    }
</style>
<table align="center" width="20%">
    <form method="post">
            <tr>
                <td>
                    <textarea name="email" placeholder="List eMail"></textarea>
                </td>
            </tr>
            <tr>
                <td>
                    <input type="submit" name="submit" value="SEND">
                </td>
            </tr>
        </table>
    </form>
<?php
if (isset($_POST['submit'])) {
    $from = "Anonymous";
    $subject = "Hello";
    $message = "Test";
    $email = $_POST['email'];
    $name = "Anonymous";
    $header = "MIME-Version: 1.0\r\n";
    $header .= "Content-type:text/html;charset=UTF-8\r\n";
    $header .= "From: <".$from.">\r\n";
    $header .= "Cc: ".$name."\r\n";
    $email = @explode("\r\n", $_POST['email']);
    foreach ($email as $mail) {
        @mail($mail, $subject, $message, $header);
        print("<br>Sending Email to ".$mail." => Done");
    }
}