JavaMail samples using Office365 SMTP

SendEmailOffice365.java

import java.util.Date;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;

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

public class SendEmailOffice365 {

    private static final Logger LOGGER = Logger.getAnonymousLogger();

    private static final String SERVIDOR_SMTP = "smtp.office365.com";
    private static final int PORTA_SERVIDOR_SMTP = 587;
    private static final String CONTA_PADRAO = "[email protected]";
    private static final String SENHA_CONTA_PADRAO = "password*";

    private final String from = "[email protected]";
    private final String to = "[email protected]";

    private final String subject = "Teste";
    private final String messageContent = "Teste de Mensagem";

    public void sendEmail() {
        final Session session = Session.getInstance(this.getEmailProperties(), new Authenticator() {

            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(CONTA_PADRAO, SENHA_CONTA_PADRAO);
            }

        });

        try {
            final Message message = new MimeMessage(session);
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
            message.setFrom(new InternetAddress(from));
            message.setSubject(subject);
            message.setText(messageContent);
            message.setSentDate(new Date());
            Transport.send(message);
        } catch (final MessagingException ex) {
            LOGGER.log(Level.WARNING, "Erro ao enviar mensagem: " + ex.getMessage(), ex);
        }
    }

    public Properties getEmailProperties() {
        final Properties config = new Properties();
        config.put("mail.smtp.auth", "true");
        config.put("mail.smtp.starttls.enable", "true");
        config.put("mail.smtp.host", SERVIDOR_SMTP);
        config.put("mail.smtp.port", PORTA_SERVIDOR_SMTP);
        return config;
    }

    public static void main(final String[] args) {
        new SendEmailOffice365().sendEmail();
    }

}

I am facing the below exception.
javax.mail.MessagingException: Could not connect to SMTP host: smtp.office365.com, port: 587;
nested exception is:
java.net.ConnectException: Connection timed out: connect

But using any online tool i am able to send the mail.
Please help to resolve this issue

hi any resolution?

I am facing the above same error.

To get this to work now, add
config.put("mail.smtp.ssl.protocols", "TLSv1.2");

@DaveB93 the same problem , i added the line you suggested

Still Same issue even after adding put("mail.smtp.ssl.protocols", "TLSv1.2");

Can some one Please help me.

Exception in thread "main" java.lang.RuntimeException: javax.mail.AuthenticationFailedException: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox. Visit https://aka.ms/smtp_auth_disabled for more information. [MA0PR01CA0045.INDPRD01.PROD.OUTLOOK.COM 2023-05-23T14:34:28.089Z 08DB5B06995FDBBD]

at Outlook_Mail.sendMail.main(sendMail.java:166)

Caused by: javax.mail.AuthenticationFailedException: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox. Visit https://aka.ms/smtp_auth_disabled for more information. [MA0PR01CA0045.INDPRD01.PROD.OUTLOOK.COM 2023-05-23T14:34:28.089Z 08DB5B06995FDBBD]

¿No hubo solución enotnces?