Help Pls! JavaMail setDataHandler not working without exception

Question

am having trouble sending attachments - although there is no exception thrown. If I don't attach the file sending email works fine. I am using rational development to develop a portlet application.
Any Ideas?
Below is the code:
Properties l_props = System.getProperties();
l_props.put("mail.smtp.host", "*********");
// Get the default Session using Properties Object
Session l_session = Session.getDefaultInstance(l_props, null);
MimeMessage l_msg = new MimeMessage(l_session); // Create a New message
l_msg.setFrom(new InternetAddress(from)); // Set the From address
// Setting the "To recipients" addresses
l_msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
l_msg.setSubject(subject); // Sets the Subject
MimeMultipart multipart = new MimeMultipart();
// Create and fill the first message part
MimeBodyPart bodyPart= new MimeBodyPart();
bodyPart.setContent(body,"text/plain; charset=utf-8");
multipart.addBodyPart(bodyPart);
if ((fileName!=null) && (new File("C:/"+fileName).exists())){
//MimeBodyPart attachment = new MimeBodyPart();
BodyPart attachment = new MimeBodyPart();
FileDataSource fds = new FileDataSource("C:/"+fileName);
attachment.setDataHandler(new DataHandler(fds));
attachment.setDisposition(MimeMessage.ATTACHMENT);
attachment.setFileName(fds.getName());
multipart.addBodyPart(attachment);
// Add the Multipart to the message
l_msg.setContent(multipart);
// Set the Date: header
l_msg.setSentDate(new Date());
// Send the message
Transport.send(l_msg);

Answer 1

Hi,
You can also check if  the address and logon data of the Integration Builder is correctly maintained in the
Exchange Profile (http://<IntegrationServer>:<port>/exchangeProfile/index.html
also check if Tcode SLDCHECK works fine.If its a new installation please check if all the post installation steps
are performed correctly.
Regards,
Srinivas