require_once "Mail.php";

$from = "Sandra Sender <[xxx]@t-online.de>";
$to = "Ramona Recipient <[xxx]@somewhere.com>";

$subject = "Hi!";
$body = "Hi,How are you?";
$host = "securesmtp.t-online.de";
$port = 465;
$username = "USERNAME";
$password = "PASSWORD";

$headers = array ('From' => $from,
 'To' => $to,
 'Subject' => $subject);

$smtp = Mail::factory('smtp', array ('host' => $host,
 'port' => $port,
 'username' => $username,
 'password' => $password));

$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail)) {
 echo("<p>" . $mail->getMessage() . "</p>");
} else {
 echo("<p>Message successfully sent!</p>");
}