Java Mail - Small problem

Question

I've just installed Javamail and I've gotten the demo servlet working. However I've compiled my own Javamail servlet, but it doesn't seem to be working. It compiles correctly, but it doesn't send the email. I have the correct settings for the SMTP and I was told, since I'm using my own computer, "localhost" would do for the name of the SMTP server. They both compile correctly and I've the mail server address I have is correct. Any ideas?
package email12;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.*;
import business.User;
import data.UserIO;
import util.MailUtil;
public class EmailServlet extends HttpServlet{
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException{
String emailAddress = "[email protected]";
String firstName = "Noel";
String to = "[email protected]";
String from = "[email protected]";
String subject = "Test Email";
String message = "Dear " + firstName + ",\n" +
"This is a test email";
try{
MailUtil.sendMail(to, from, subject, message);
catch (MessagingException me){
log("MessagingException: " + emailAddress);
log(me.toString());
RequestDispatcher dispatcher =
getServletContext().getRequestDispatcher(
"/email11/show_email_entry.jsp");
dispatcher.forward(request, response);
package util;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
public class MailUtil{
public static void sendMail(String to, String from,
String subject, String messageText)
throws MessagingException{
// 1 - get a mail session
Properties props = new Properties();
props.put("mail.whatever.ie", "localhost");
Session session = Session.getDefaultInstance(props);
// 2 - create a message
MimeMessage message = new MimeMessage(session);
message.setSubject(subject);
message.setText(messageText);
// 3 - address the message
InternetAddress fromAddress = new InternetAddress(from);
InternetAddress toAddress = new InternetAddress(to);
message.setFrom(fromAddress);
message.setRecipient(Message.RecipientType.TO, toAddress);
// 4 - send the message
Transport.send(message);
}

Answer 1

But how come when I use the demo program which comes in the Javamail-1.3 folder, it sends the email for me. So wouldn't that mean that there is a smtp server running? This is where the demo is and how it runs:
http://java.sun.com/developer/onlineTraining/JavaMail/exercises/MailSetup/index.html
import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;
import javax.mail.*;
import javax.mail.internet.*;
* Demo app that shows how to construct and send an RFC822
* (singlepart) message.
* XXX - allow more than one recipient on the command line
* @author Max Spivak
* @author Bill Shannon
public class msgsend {
public static void main(String[] argv) {
     new msgsend(argv);
public msgsend(String[] argv) {
     String to, subject = null, from = null,
          cc = null, bcc = null, url = null;
     String mailhost = null;
     String mailer = "msgsend";
     String protocol = null, host = null, user = null, password = null;
     String record = null;     // name of folder in which to record mail
     boolean debug = false;
     BufferedReader in =
               new BufferedReader(new InputStreamReader(System.in));
     int optind;
     for (optind = 0; optind < argv.length; optind++) {
     if (argv[optind].equals("-T")) {
          protocol = argv[++optind];
     } else if (argv[optind].equals("-H")) {
          host = argv[++optind];
     } else if (argv[optind].equals("-U")) {
          user = argv[++optind];
     } else if (argv[optind].equals("-P")) {
          password = argv[++optind];
     } else if (argv[optind].equals("-M")) {
          mailhost = argv[++optind];
     } else if (argv[optind].equals("-f")) {
          record = argv[++optind];
     } else if (argv[optind].equals("-s")) {
          subject = argv[++optind];
     } else if (argv[optind].equals("-o")) { // originator
          from = argv[++optind];
     } else if (argv[optind].equals("-c")) {
          cc = argv[++optind];
     } else if (argv[optind].equals("-b")) {
          bcc = argv[++optind];
     } else if (argv[optind].equals("-L")) {
          url = argv[++optind];
     } else if (argv[optind].equals("-d")) {
          debug = true;
     } else if (argv[optind].equals("--")) {
          optind++;
          break;
     } else if (argv[optind].startsWith("-")) {
          System.out.println(
"Usage: msgsend [[-L store-url] | [-T prot] [-H host] [-U user] [-P passwd]]");
          System.out.println(
"\t[-s subject] [-o from-address] [-c cc-addresses] [-b bcc-addresses]");
          System.out.println(
"\t[-f record-mailbox] [-M transport-host] [-d] [address]");
          System.exit(1);
     } else {
          break;
     try {
     if (optind < argv.length) {
          // XXX - concatenate all remaining arguments
          to = argv[optind];
          System.out.println("To: " + to);
     } else {
          System.out.print("To: ");
          System.out.flush();
          to = in.readLine();
     if (subject == null) {
          System.out.print("Subject: ");
          System.out.flush();
          subject = in.readLine();
     } else {
          System.out.println("Subject: " + subject);
     Properties props = System.getProperties();
     // XXX - could use Session.getTransport() and Transport.connect()
     // XXX - assume we're using SMTP
     if (mailhost != null)
          props.put("mail.smtp.host", mailhost);
     // Get a Session object
     Session session = Session.getDefaultInstance(props, null);
     if (debug)
          session.setDebug(true);
     // construct the message
     Message msg = new MimeMessage(session);
     if (from != null)
          msg.setFrom(new InternetAddress(from));
     else
          msg.setFrom();
     msg.setRecipients(Message.RecipientType.TO,
                         InternetAddress.parse(to, false));
     if (cc != null)
          msg.setRecipients(Message.RecipientType.CC,
                         InternetAddress.parse(cc, false));
     if (bcc != null)
          msg.setRecipients(Message.RecipientType.BCC,
                         InternetAddress.parse(bcc, false));
     msg.setSubject(subject);
     collect(in, msg);
     msg.setHeader("X-Mailer", mailer);
     msg.setSentDate(new Date());
     // send the thing off
     Transport.send(msg);
     System.out.println("\nMail was sent successfully.");
     // Keep a copy, if requested.
     if (record != null) {
          // Get a Store object
          Store store = null;
          if (url != null) {
          URLName urln = new URLName(url);
          store = session.getStore(urln);
          store.connect();
          } else {
          if (protocol != null)          
               store = session.getStore(protocol);
          else
               store = session.getStore();
          // Connect
          if (host != null || user != null || password != null)
               store.connect(host, user, password);
          else
               store.connect();
          // Get record Folder. Create if it does not exist.
          Folder folder = store.getFolder(record);
          if (folder == null) {
          System.err.println("Can't get record folder.");
          System.exit(1);
          if (!folder.exists())
          folder.create(Folder.HOLDS_MESSAGES);
          Message[] msgs = new Message[1];
          msgs[0] = msg;
          folder.appendMessages(msgs);
          System.out.println("Mail was recorded successfully.");
     } catch (Exception e) {
     e.printStackTrace();
public void collect(BufferedReader in, Message msg)
                         throws MessagingException, IOException {
     String line;
     StringBuffer sb = new StringBuffer();
     while ((line = in.readLine()) != null) {
     sb.append(line);
     sb.append("\n");
     // If the desired charset is known, you can use
     // setText(text, charset)
     msg.setText(sb.toString());
}