how to send email with gmail using javamail

Posted on 2008-02-06
Medium Priority
Last Modified: 2013-11-24
Hi Experts

I am trying to use javamail to send message via gmail

this is the code

      final String SMTP_HOST_NAME = "smtp.gmail.com";
            final String SMTP_PORT = "465";
            final String emailMsgTxt = "Test Message Contents";
            final String emailSubjectTxt = "A test from gmail";
            final String emailFromAddress = "mygmail@gmail.com";
            final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
            final String[] sendTo = { "toaddress@hotmail.com };

            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

            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("mygmail_username", "mygmail_password");


            Message msg = new MimeMessage(session);
            InternetAddress addressFrom = new InternetAddress(/* from */emailFromAddress);

            InternetAddress[] addressTo = new InternetAddress[/* recipients */sendTo.length];
            for (int i = 0; i < /* recipients */sendTo.length; i++) {
                  addressTo[i] = new InternetAddress(/* recipients */sendTo[i]);
            msg.setRecipients(Message.RecipientType.TO, addressTo);

            // Setting the Subject and Content Type
            msg.setSubject(/* subject */emailSubjectTxt);
            msg.setContent(/* message */emailMsgTxt, "text/plain");

and this is the output

DEBUG: JavaMail version 1.4.1
DEBUG: not loading file: C:\Program Files\Java\jre1.6.0_03\lib\javamail.providers
DEBUG: java.io.FileNotFoundException: C:\Program Files\Java\jre1.6.0_03\lib\javamail.providers (The system cannot find the file specified)
DEBUG: URL jar:file:/C:/work/dir/mail/lib/imap.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/work/dir/mail/lib/imap.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/C:/work/dir/mail/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/work/dir/mail/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/C:/work/dir/mail/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/C:/work/dir/mail/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: not loading resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,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 Microsy stems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsy stems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc]}
DEBUG: not loading resource: /META-INF/javamail.default.address.map
DEBUG: URL jar:file:/C:/work/dir/mail/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded resource: jar:file:/C:/work/dir/mail/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: not loading file: C:\Program Files\Java\jre1.6.0_03\lib\javamail.address.map
DEBUG: java.io.FileNotFoundException: C:\Program Files\Java\jre1.6.0_03\lib\javamail.address.map (The system cannot find the file specified)
DEBUG: setDebug: JavaMail version 1.4.1
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 "smtp.gmail.com", port 465, isSSL false

Question by:aquasw
  • 2
LVL 23

Expert Comment

ID: 20831157

Author Comment

ID: 20839641

I didn't succeed to send mail to gmail.
may be I have firewall problems here.
do you know how can I send email to exchange server ?
do you have example of code ?

Accepted Solution

aquasw earned 0 total points
ID: 20892384

this is the code that worked for me to send email via the exchange server.

      private void sendEmail(String to) throws Exception {
            Properties props = System.getProperties();

            InternetAddress[] toArr = new InternetAddress[to.split(";").length];
            for (int i = 0; i < toArr.length; i++) {
                  toArr[i] = new InternetAddress(to.split(";")[i]);

            String mailHost = "my mail host";
            String mailFrom = "myUserName@comp.com";

            // Setup mail server
            props.put("mail.smtp.host", mailHost);

            // Get session
            Session session = Session.getDefaultInstance(props, null);
            props.put("mail.debug", "true");
            // Define message
            MimeMessage message = new MimeMessage(session);
            message.setFrom(new InternetAddress(mailFrom));

            message.addRecipients(Message.RecipientType.TO, toArr);

            message.setSubject("subject of the message");
            message.setText("text of the message");

            // Send message


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