如何发送HTML电子邮件？

我已经使用JMS在我的Web应用程序中成功发送电子邮件，但结果只显示在纯文本中。我希望内容能够显示html。我该怎么做？这大概是我有的：

I have successfully sent email in my web application using JMS, but the result only displays in plain text. I want the content to be able to display html. How do I do it? Here is roughly what I have:

Message msg = new MimeMessage(mailSession);
try{
    msg.setSubject("Test Notification");
    msg.setRecipient(Message.RecipientType.TO, new InternetAddress(sentTo, false));
    String message = "<div style=\"color:red;\">BRIDGEYE</div>";
    msg.setContent(message, "text/html; charset=utf-8");
    msg.setSentDate(new Date());
    Transport.send(msg);
}catch(MessagingException me){
    logger.log(Level.SEVERE, "sendEmailNotification: {0}", me.getMessage());
}