The following method doesn't send emails to "outside" addresses

[thelordoftherings]

Hello,

I am using this method to send an email:

public boolean sendMail(String from, String to, String subject, String body)
{
try
{
InitialContext ctx = new InitialContext();
Session sess = (Session) javax.rmi.PortableRemoteObject.narrow(ctx.lookup("java:comp/env/mail/MailSession"), Session.class);
MimeMessage msg = new MimeMessage(sess);
msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO, extractRecipientAddresses(to));
msg.setSubject(subject, "UTF-8");
msg.setContent(body, "text/plain;charset=UTF-8");
msg.saveChanges();
Transport tr = sess.getTransport("smtp");
tr.connect(HOST, "", "");
Address[] address = msg.getAllRecipients();
tr.sendMessage(msg, address);
tr.close();
return true;
}
catch (Exception e)
{
System.err.println(e.getMessage());
return false;
}
}

The HOST is our exchange hostname inside the organization.
The problem is that this method only sends mails to email addresses inside our organization. If, for example, I would like to use it to send an email to an account outside the organization, such as Hotmail, the sending doesn't succeed. Any ideas why?

 

[sedj]

Thats a question for your MTA admin - its nothing to do with Java. With that code, you are just dumping email into your MTA's outbound queue.

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http://www.primrose.org.uk

 

[thelordoftherings]

Hey sedj,
This is exactly what I think too, though he insist that the problem is with the code so I wanted to get a second opinion. 10X alot.