$from = "examplewebsite.com";

$to = "[email protected]";
$subject = "Hi!";
$body = "Hi,nnHow are you?";

$host = "website.com ";
$username = "[email protected]";
$port = "465";
$password = "password";

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

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

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

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