Java - Enviar email en html (JAVA)

public void enviarEmail(String destinatario, String asunto, String contenido,String [] fichero) throws MessagingException{

    Properties props = new Properties();

    props.put("mail.transport.protocol", "smtps");

    props.put("mail.smtps.host", SMTP_HOST_NAME);

    props.put("mail.smtps.auth", "true");

    // props.put("mail.smtps.quitwait", "false");

    Session mailSession = Session.getDefaultInstance(props);

    mailSession.setDebug(true);

    Transport transport = mailSession.getTransport();

    MimeMessage message = new MimeMessage(mailSession);

    // asunto

    message.setSubject(asunto);

    message.addRecipient(Message.RecipientType.TO,

            new InternetAddress(destinatario));

    // para contenido

    BodyPart mensageBP=new MimeBodyPart();

    mensageBP.setContent(contenido, "text/html");

    Multipart mPart= new MimeMultipart();

    // para fichero adjunto

    DataSource src;

    for(int i=0;i<fichero.length;i++){

    mensageBP=new MimeBodyPart();

    src= new FileDataSource(fichero[i]);

    mensageBP.setDataHandler(new DataHandler(src));

    mensageBP.setFileName(fichero[i]);

    mPart.addBodyPart(mensageBP);

    }

    message.setContent(mPart);

    transport.connect

        (SMTP_HOST_NAME, SMTP_HOST_PORT, SMTP_AUTH_USER, SMTP_AUTH_PWD);

    transport.sendMessage(message,

        message.getRecipients(Message.RecipientType.TO));

    transport.close();

}