Transport connect Hang

Question

Hello to all, i have developed a very simple mail UI to send email but i encounter error where when the debug pointer reach this statement
private final static String myHost = "smtp.gmail.com";
Username is the email address.
try {
myTransport.connect(myHost, 587, auth.getUsername(),
auth.getPassword());
catch(MessagingException ex) {
myLogger.log(Level.ALL, ex.toString());
, the debug pointer is just get disappear and no exception is throw. Therefore, i can't even get any useful log.
Thanks.
Edited by: peterwkc on Jun 28, 2011 3:31 AM
Edited by: peterwkc on Jun 28, 2011 3:35 AM

Answer 1

I using SSL but i get this exception :
SEVERE: Mail Exception : javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465;
nested exception is:
     java.net.SocketTimeoutException: Read timed out
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465;
nested exception is:
     java.net.SocketTimeoutException: Read timed out
This is my code :
// Register Java Secure Socket Extensio(JSSE) provider
Provider mySecureProvider = new Provider();
Security.addProvider(mySecureProvider);
mailProperties = new Properties();
mailProperties.put("mail.smtp.auth", "true");
mailProperties.put("mail.smtp.host", myHost);
mailProperties.put("mail.smtp.port", myPort);
// mailProperties.put("mail.smtp.starttls.enable", "true");
mailProperties.put("mail.smtp.timeout", timeOut);
mailProperties.put("mail.smtp.connectiontimeout", timeOut);
// mailProperties.put("mail.smtp.ssl.trust", myHost);
mailProperties.put("mail.smtp.socketFactory.port", myPort);
mailProperties.put("mail.smtp.socketFactory.class", sslFactory);
mailProperties.put("mail.smtp.socketFactory.fallback", "false");
mailProperties.put("mail.debug", true);
mailSession = Session.getInstance(mailProperties, theAuthenticator);
mailSession.setDebug(true);
mailMessage = new MimeMessage(mailSession);
public static MyMail createInstance(MyAuthenticator theAuthenticator) {
if(myMailInstance == null) {
myMailInstance = new MyMail(theAuthenticator);
return myMailInstance;
public void sendMessagage(MessageAttribute myMsgAttribute,
MyAuthenticator auth) {
try {
mailMessage.setSentDate(new Date());
mailMessage.setSubject(myMsgAttribute.getSubject());
mailMessage.setFrom(myMsgAttribute.getFrom());
mailMessage.setRecipient(Message.RecipientType.TO,
myMsgAttribute.getRecipient());
mailMessage.setContent(myMsgAttribute.getMsgContent(),
"text/plain");
//<editor-fold defaultstate="collapsed" desc="TLS">
/*try {
* // Get transport protocol
* // Recommend not to use smtp transport directly but
* // use mail session to get the transport
* Transport myTransport = mailSession.getTransport("smtp");
* try {
* myTransport.connect(myHost, myPort, auth.getUsername(),
* auth.getPassword());
* catch(MessagingException ex) {
* myLogger.log(Level.SEVERE, ex.toString());
* if(myTransport.isConnected()) {
* Address[] recipientAddress = new InternetAddress[1];
* recipientAddress[0] = myMsgAttribute.getRecipient();
* mailMessage.saveChanges();
* myTransport.sendMessage(mailMessage, recipientAddress);
* myTransport.close();
* Logger.getLogger(MyMail.class.getName()).log(Level.SEVERE,
* "Mail Log : " + "Mail sent");
* else {
* Logger.getLogger(MyMail.class.getName()).log(Level.SEVERE,
* "Mail Exception : " + "Mail Server cannot be connect");
* catch(NoSuchProviderException ex) {
* Logger.getLogger(MyMail.class.getName()).log(Level.SEVERE,
* "Mail Exception : " + ex.toString(), ex);
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc="SSL">
//</editor-fold>
Transport.send(mailMessage);
catch (MessagingException ex) {
Logger.getLogger(MyMail.class.getName()).log(Level.SEVERE,
"Mail Exception : " + ex.toString(), ex);
Please help.
Thanks.
Edited by: peterwkc on Jul 4, 2011 11:46 PM