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Thread: [Asking] Problem send email

  1. #1
    Join Date
    Sep 2012
    My Mood
    Thanked 1 Time in 1 Post

    Default [Asking] Problem send email

    Hi all,

    I got the problem about send email If I used protocol besides smtp. I success if i was sending email with smtp protocol. But I failed if I was sending with POP, IMAP.
    It is the succed code if sending with smtp.
    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;
     * @author user
    public class SendEmail {
        public static void main(String[] args) {
            // Recipient's email ID needs to be mentioned.
            String to = "userTo@gmail.com";
            // Sender's email ID needs to be mentioned
            String from = "userFrom@gmail.com";
            // Assuming you are sending email from localhost
            String host = "gmail.com";
            // Get system properties
    //        Properties properties = System.getProperties();
            Properties properties = new Properties();
            properties.put("mail.smtp.host", "smtp.gmail.com");
            properties.put("mail.smtp.auth", "true");
            properties.put("mail.debug", "false");
            properties.put("mail.smtp.ssl.enable", "true");
            properties.put("mail.smtp.port", "465");
            // Setup mail server
    //        properties.setProperty("smtp.gmail.com", host);
            // Get the default Session object.
            Session session = Session.getDefaultInstance(properties, new Authenticator() {@Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("userFrom@gmail.com", "YourPassword");
            try {
                // Create a default MimeMessage object.
                MimeMessage message = new MimeMessage(session);
                // Set From: header field of the header.
                message.setFrom(new InternetAddress(from));
                // Set To: header field of the header.
                        new InternetAddress(to));
                // Set Subject: header field
                message.setSubject("This is the Subject Line!");
                // Now set the actual message
                message.setText("This is actual message");
                // Send message
                System.out.println("Sent message successfully....");
            } catch (MessagingException mex) {

    I already search and found this link, but got error. The link contain these code below
    Session session = Session.getDefaultInstance(props, null);
    Store store = session.getStore("IMAP");
    store.connect(host, username, password);
    Folder inbox = store.getFolder("INBOX");
    Message[] messages = inbox.getMessages( );

    But I got error about using that code.

    Please anyone know, share this info to me

  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Eastern Florida
    Thanked 2,273 Times in 2,244 Posts

    Default Re: [Asking] Problem send email

    I got error
    Please copy the full text of the error message and paste it here. It has important info about the error.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Junior Member
    Join Date
    Sep 2013
    Thanked 0 Times in 0 Posts

    Default Re: [Asking] Problem send email

    Your code is probably working correctly. POP3 and IMAP are used for receiving messages. SMTP is used to send messages.
    Last edited by djslavens; October 22nd, 2013 at 05:23 PM. Reason: spelling error

  4. #4
    Join Date
    Sep 2012
    My Mood
    Thanked 1 Time in 1 Post

    Default Re: [Asking] Problem send email

    Thanks for replay..

    Now I understand what pop3 and imap are. Last time I got error because I didn't add certificate to my keystore. Thanks Norm and djsiavens.

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