JavaMail uses outlook in the company

I used JavaMail for the first time with some exceptions. I don't understand that I saw some mistakes in other questions, but their answers didn't help me This is my code

final String username = "imsan1@cdcpk.com";
        final String password = "**********";
        Properties props = System.getProperties();
        props.put("mail.smtp.auth","true");
        props.put("mail.smtp.host","10.1.136.26");
        props.put("mail.smtp.port","25");
        props.put( "mail.smtp.user",username );
        props.put( "mail.smtp.password",password );

        Session session = Session.getInstance(props,new SmtpAuthenticator(username,password)
          );


        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("imsan1@cdcpk.com"));
            message.setRecipients(Message.RecipientType.TO,InternetAddress.parse("immni1@cdcpk.com"));
            message.setSubject("Testing Subject");
            message.setText("Dear Mail Crawler,"
                + "\n\n No spam to my email,please!");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }

SmtpAuthenticator

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;


class SmtpAuthenticator extends Authenticator {
     String user;
     String pw;
     public SmtpAuthenticator (String username,String password)
     {
        super();
        this.user = username;
        this.pw = password;
     }
    public PasswordAuthentication getpasswordAuthentication()
    {
       return new PasswordAuthentication(user,pw);
    }
}

The error log is

Exception in thread "main" java.lang.RuntimeException: javax.mail.AuthenticationFailedException: 250-CDC-HO-CAS1.cdcpk.com Hello [10.1.34.74]
250-SIZE 37748736
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-X-ANONYMOUSTLS
250-AUTH NTLM
250-X-EXPS GSSAPI NTLM
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 XRDST

    at org.cdc.eipo.bean.investorsetup.EmailController.main(EmailController.java:64)
Caused by: javax.mail.AuthenticationFailedException: 250-CDC-HO-CAS1.cdcpk.com Hello [10.1.34.74]
250-SIZE 37748736
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-X-ANONYMOUSTLS
250-AUTH NTLM
250-X-EXPS GSSAPI NTLM
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 XRDST

    at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:826)
    at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:761)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:685)
    at javax.mail.Service.connect(Service.java:317)
    at javax.mail.Service.connect(Service.java:176)
    at javax.mail.Service.connect(Service.java:125)
    at javax.mail.Transport.send0(Transport.java:194)
    at javax.mail.Transport.send(Transport.java:124)
    at org.cdc.eipo.bean.investorsetup.EmailController.main(EmailController.java:59)

Thank you very much for any help

Solution

The code works normally. The reason for the error is that I don't have the permission of SMTP server, so an exception is displayed. Send mail after configuring access