Failure to send email using gmail server

Question

I am using gmail account and I use thunderbird to download all the emails and to compose my emails. Now I'm trying to write a java application that will send out emails. Since I'm still in school I am using gmail account for the class project.
One t hing I noticed is that in my thunderbird I use secure connection using TLS. How should I incorporate that here in the java code. Is that why I'm getting the exception. Anyone knows any other smtp server using which I could submit my assignment.
Here is my code:
package com.imagework.email;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendMailUsingAuthentication {
     private static final String SMTP_HOST_NAME = "smpt.gmail.com";
     private static final String SMTP_PORT = "587";     
     private static final String SMTP_AUTH_USER = "[email protected]";
     private static final String SMTP_AUTH_PWD = "abcde";
     private static final String emailMsgTxt = "email message text";
     private static final String emailSubjectTxt = "email subject";
     private static final String emailFromAddress = "[email protected]";
     // Add List of Email address to who email needs to be sent to separated by comma
     private static final String[] emailList = { "[email protected]" };
     public static void main(String args[]) throws Exception {
          SendMailUsingAuthentication smtpMailSender = new SendMailUsingAuthentication();
          smtpMailSender.postMail(emailList, emailSubjectTxt, emailMsgTxt,
                    emailFromAddress);
          System.out.println("Sucessfully Sent mail to All Users");
     public void postMail(String recipients[], String subject, String message,
               String from) throws MessagingException {
          boolean debug = true;
          Properties props = new Properties();
          props.put("mail.smtp.host", SMTP_HOST_NAME);
          props.put("mail.smtp.auth", "true");
          props.put("mail.debug", "true");
          props.put("mail.smtp.user", SMTP_AUTH_USER);
          props.put("mail.smtp.password", SMTP_AUTH_PWD);          
          props.put("mail.smtp.port", SMTP_PORT );
          Authenticator auth = new SMTPAuthenticator();
          Session session = Session.getDefaultInstance(props, auth);
          session.setDebug(debug);
          Message msg = new MimeMessage(session);
          InternetAddress addressFrom = new InternetAddress(from);
          msg.setFrom(addressFrom);
          InternetAddress[] addressTo = new InternetAddress[recipients.length];
          for (int i = 0; i < recipients.length; i++) {
               addressTo[i] = new InternetAddress(recipients);
          msg.setRecipients(Message.RecipientType.TO, addressTo);
          // Setting the Subject and Content Type
          msg.setSubject(subject);
          msg.setContent(message, "text/plain");
//          Transport trans = session.getTransport();
//          trans.connect(SMTP_HOST_NAME, SMTP_PORT , SMTP_AUTH_USER, SMTP_AUTH_PWD);
//          trans.send(msg);
          Transport.send(msg);
     * SimpleAuthenticator is used to do simple authentication when the SMTP
     * server requires it.
     private class SMTPAuthenticator extends javax.mail.Authenticator {
          public PasswordAuthentication getPasswordAuthentication() {
               String username = SMTP_AUTH_USER;
               String password = SMTP_AUTH_PWD;
               return new PasswordAuthentication(username, password);
The error I get is given in detail:
DEBUG: JavaMail version 1.3.1
DEBUG: java.io.FileNotFoundException: C:\Program Files\Java\j2re1.4.2_06\lib\javamail.providers (The system cannot find the file specified)
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: !anyLoaded
DEBUG: not loading resource: /META-INF/javamail.address.map
DEBUG: java.io.FileNotFoundException: C:\Program Files\Java\j2re1.4.2_06\lib\javamail.address.map (The system cannot find the file specified)
DEBUG: setDebug: JavaMail version 1.3.1
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smpt.gmail.com", port 587
javax.mail.SendFailedException: Sending failed;
  nested exception is:
     class javax.mail.MessagingException: Unknown SMTP host: smpt.gmail.com;
  nested exception is:
     java.net.UnknownHostException: smpt.gmail.com
     at javax.mail.Transport.send0(Transport.java:218)
     at javax.mail.Transport.send(Transport.java:80)
     at com.imagework.email.SendMailUsingAuthentication.postMail(SendMailUsingAuthentication.java:70)
     at com.imagework.email.SendMailUsingAuthentication.main(SendMailUsingAuthentication.java:29)
Exception in thread "main" All suggestions are welcome!
- Roger

Answer 1

Here is working code. I followed the instructions here, which, though it
does not even mention SMTP, still works with SMTP:
http://www.javaworld.com/javatips/jw-javatip115.html
Look for the xxxxx occurances and substiture with your credentials :
* Created on Feb 21, 2005
import java.security.Security;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class GoogleTest {
    private static final String SMTP_HOST_NAME = "smtp.gmail.com";
    private static final String SMTP_PORT = "465";
    private static final String emailMsgTxt = "Test Message Contents";
    private static final String emailSubjectTxt = "A test from gmail";
    private static final String emailFromAddress = "[email protected]";
    private static final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
    private static final String[] sendTo = { "[email protected]"};
    public static void main(String args[]) throws Exception {
        Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
        new GoogleTest().sendSSLMessage(sendTo, emailSubjectTxt,
                emailMsgTxt, emailFromAddress);
        System.out.println("Sucessfully Sent mail to All Users");
    public void sendSSLMessage(String recipients[], String subject,
            String message, String from) throws MessagingException {
        boolean debug = true;
        Properties props = new Properties();
        props.put("mail.smtp.host", SMTP_HOST_NAME);
        props.put("mail.smtp.auth", "true");
        props.put("mail.debug", "true");
        props.put("mail.smtp.port", SMTP_PORT);
        props.put("mail.smtp.socketFactory.port", SMTP_PORT);
        props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
        props.put("mail.smtp.socketFactory.fallback", "false");
        Session session = Session.getDefaultInstance(props,
                new javax.mail.Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication("xxxxxx", "xxxxxx");
        session.setDebug(debug);
        Message msg = new MimeMessage(session);
        InternetAddress addressFrom = new InternetAddress(from);
        msg.setFrom(addressFrom);
        InternetAddress[] addressTo = new InternetAddress[recipients.length];
        for (int i = 0; i < recipients.length; i++) {
            addressTo[i] = new InternetAddress(recipients);
msg.setRecipients(Message.RecipientType.TO, addressTo);
// Setting the Subject and Content Type
msg.setSubject(subject);
msg.setContent(message, "text/plain");
Transport.send(msg);
[i]