How to add sensitivity labels while sending mail using outlook365 mail id with java code.

Question

I am sending Outlook mail using Java code. I am facing issues with adding sensitivity labels like confidential, private, public, etc.

Below is the POC I am using.
and also the output I am getting. JavaCopy

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SmtpExample {
  public static void main(String[] args) throws MessagingException {

    String to = "dummy";
	
    String userEmail = "dummy";
    String accessToken = "dummy";

    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.imap.sasl.enable", "true");
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.auth.mechanisms", "XOAUTH2");
    props.put("mail.smtp.auth.login.disable", "true");
    props.put("mail.smtp.auth.plain.disable", "true");
    props.put("mail.debug.auth", "true");
     Authenticator auth = new Authenticator() {
      protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(userEmail,accessToken );
      }
    };
    Session session = Session.getInstance(props, auth);
    Transport transport = session.getTransport("smtp");
    transport.connect(smtpHost, port, userEmail,
        accessToken);;
        session.setDebug(true); 
    session.setDebug(true);
    try {
      MimeMessage message = new MimeMessage(session);
      message.setFrom(new InternetAddress(userEmail));
      message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
      message.setSubject("Hello");
      message.setText("Hello Testing!");
	  message.addHeader("Sensitivity", "Confidential");
      Transport.send(message);

      System.out.println("message sent successfully...");

    } catch (MessagingException e) {
      e.printStackTrace();
    }
  }
}

The message is sent successfully but the issues I am facing are :

1. I am not getting any confidential tags or extra security labels.
2. Could you tell me how to do the same with UI.
   Please check the POC and Tell me if is there anything wrong.

Answer 1

Hi Vinay Sharma, According to RFC 1327, the accepted values for the Sensitivity header are one of these below:

sensitivity = "Personal" / "Private" / "Company-Confidential"

So in your case, it would be:

message.addHeader("Sensitivity", "Company-Confidential");