Can't send to emails that are out of the domain.

Question

I know this has been discussed in depth already. I have tried all the code examples that I have been able to find in this forum that say you should be able to send messages to email addresses that are outside the domain (Company) even if exchange server doesn't have message relaying turned on.
None of the examples I have tried have worked. Is this just not possible? If it is, please send code examples.
Below you will find my code.
Properties properties = new Properties() ;
properties.put("mail.smtp.host", hostName) ;
properties.put("mail.smtp.auth", "true");
// this authenticator authenticates using my username and password
javax.mail.Authenticator auth = new PopupAuthenticator() ;
Session session = Session.getDefaultInstance(properties, auth) ;
MimeMessage message = new MimeMessage(session) ;
try {
message.setFrom(new InternetAddress(fromemail, fromname)) ;
message.setRecipient(Message.RecipientType.TO, new InternetAddress(to, toName)) ;
message.setSubject(subject) ;
message.setText(messageText) ;
message.setSentDate(new Date());
Transport.send(message);
} catch (UnsupportedEncodingException e) { insertLog(e.toString()) ;  }

Answer 1

I have the same problem if you have a solution please send me to [email protected], thanks.