JavaMail API didnt work in UNIX environment

Question

I facing a problem whereby my JavaMail class, as below:
public class MailExample {
public static void main (String args[]) throws Exception {
String from = " "; // email address of the sender
String to = " "; // email address of the receipient
String host = " "; // mail server id
String subject = " "; // subject for the mail
String content = " "; //content of the mail
String error = null;
     try{
     // Get system properties
          Properties props = System.getProperties();
     // Set the transport protocol format
     props.put("mail.transport.protocol", "SMTP");
     // Setup mail server
     props.put("mail.smtp.host", host);
     // Get session     
     Session session = Session.getDefaultInstance(props, null);
     // Define message
     MimeMessage message = new MimeMessage(session);
     // Set the from address
     message.setFrom(new InternetAddress(from));
     // Set the to address
     message.addRecipient(Message.RecipientType.TO,
          new InternetAddress(to));
     // Set the subject
     message.setSubject(subject);
     // Set the content
     message.setText(content);
     // Send message
     Transport.send(message);
     }catch (Exception e)
          error = e.getMessage();
     System.out.println("\n" + error);
This class works in Window based Exchange Server but not working in UNIX Exchange Server. Can anyone help me on this problem?
Thanks.

Answer 1

i'd found a solution for this problem.
this is the code i use:
try{
                    PrintStream out1;
                    SmtpClient send = new SmtpClient("smtp........com"); // create a mail client
                    send.from(emailVal); // email address of the sender
                    send.to(" "); // email address of the receiver
                    out1 = send.startMessage();
                    //Format of the email
                    out1.println("From: [email protected]");
                    out1.println("To: [email protected]");
                    out1.println("Subject: " + subject);
                    out1.println(content);
                    out1.flush();
                    out1.close();
                    send.closeServer();
               catch (Exception e) {
                    errorMsg = e.getMessage();
I'd used smtpClient to replace the JavaMail it really works in UNIX but it will show error : connection reset if you run it in Window environment.