$mail = new PHPMailer();

    $mail->isSMTP();
    $mail->SMTPAuth = true;
    $mail->SMTPSecure = 'ssl';
    $mail->Host = 'smtp.gmail.com';
    $mail->Port = 465;
    $mail->CharSet = 'UTF-8';
    $mail->Username = 'mail@gmail.com';
    $mail->Password = 'haslo';

    $mail->isHTML(true);
    $mail->setFrom('user@gmail.com', 'Name');
    $mail->Subject = 'New message';
    $mail->Body = 'message';
    $mail->addAddress('mail.to@gmail.com', 'Page');

    $mail->Send();