prueba esto , claro con una poca corrección
$eamil ="
[email protected]";
if(preg_match('/^[A-Z0-9._-]+@[A-Z0-9.-]+\.[A-Z]{2,6}$/i', $email)) {
$mailmsg = "You have message in your <b>InBox</b>";
$to = $email . ', '; // note the comma
$subject = "You have new message";
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
// Additional headers
$headers .= 'To: '.$email.' ' . "\r\n";
$headers .= 'From: YourSite <'.$_SERVER['HTTP_HOST'].'>' . "\r\n";
// Mail it
if (!@mail($to, $subject, $mailmsg, $headers)) {
echo "<h2 align='center'> Error sending email</h2>";
echo "<h3 align='center'> Please contact with system administration</h3>";
}
}