URGENT::Status returned by Transport.send() and problem with mail.smtp.host

Question

Hello,
I am writing a code to send an email using JavaMail. I have added mail.jar and activation.jar in the classpath. Also I would like to mention that I am using Weblogic6.1 SP4.
A bunch of questions:
1. After calling Transport.send(), how do i know if the mail was sent successfully or not ?? Is there anyway I can handle that?
2. I am using props.put(mail.smtp.host, <some-value>). What should be this <some-value> ?? Where can I get this value from??
And is this value sufficient for the code to know that which server we are using for it? Do we need to give any URL/Port etc? How does this work?
3. Is there anything else other than smtp host, username and password to be added to props?? Do we need to create a properties file??
4. After doing these things, do I need to create a mail session in the Weblogic server also or is it a different method?
Please help me in resolving these issues.
Thanks

Answer 1

Thanks for your kind answers, Dr. Clap..!!
However, I will again like to ask u this:
1. As i said that I installed Weblogic 6.1 in my local machine, can I use it as the mail server? As the server is local to my machine, i know that its only me who is the incharge of it. How do I know what smtp host to use.
2. I am using this code:
public callService(ServiceRequest request) throws Exception {
     EmailRequest req = (EmailRequest) request;
     Session session = null;
     MimeMessage msg = new MimeMessage(session);
     String accNum = req.getAccountNumber();
     String toAddress = req.getToAddress().trim();
     String fromAddress = generalConfig.FROM_EMAIL_ADDRESS;
     String subject = req.getSubject().trim();
     String message = req.getMessage().trim();
     String [] arrToAddress = null;
     String fileName = "./"+accNum+".htm";
     if (toAddress != null) {
arrToAddress = convertToArray(toAddress);
     Properties props = System.getProperties();
     props.put("mail.smtp.host", "MYSERVER"); //STILL NEED TO FIGURE OUT WHAT VALUE TO PUT HERE
session = Session.getDefaultInstance(props);
     setRecipientsTo(msg,arrToAddress);
     msg.setFrom(new InternetAddress(fromAddress));
     msg.setSubject(subject);
     msg.setText(message);
MimeMultipart mp = new MimeMultipart();
MimeBodyPart text = new MimeBodyPart();
     text.setDisposition(Part.INLINE);
     text.setContent(message, "text/html");
     mp.addBodyPart(text);
     MimeBodyPart file_part = new MimeBodyPart();
     File file = new File(fileName);
     FileDataSource fds = new FileDataSource(file);
     DataHandler dh = new DataHandler(fds);
     file_part.setFileName(file.getName());
     file_part.setDisposition(Part.ATTACHMENT);
     file_part.setDescription("Attached file: " + file.getName());
     file_part.setDataHandler(dh);
     mp.addBodyPart(file_part);
     msg.setContent(mp);
Transport.send(msg); //send message
In this code, like I am using Properties class, will this code work fine(as it is) even if I dont make any Properties text file?? or is it mandatory for me to make the properties text file and to add some values to it?
I am sorry, I may sound a bit dumb, but I just need to learn it somehow.
Thanks.
P.S: convertToArray() and setRecipientsTo() are my own defined private methods.