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Thread: JavaMail and Gmail

  1. #1
    Junior Member
    Join Date
    May 2010
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    Default JavaMail and Gmail


    The program of JavaMail to send email by using gmail SMTP server was working correctly in Windows 7. When I tested the program in Windows XP in a different machine, then the email is not going. Either Messaging or SendMail exception comes. I have used JDK1.6 and NetBeans 5.5 in both the machines.

    Kindly let me know whether the problem is because of change of OS (in which case some changes in coding may be needed) or some setting needs to be done in NetBeans, which was taken automatically in Windows 7.

    The code is=
    * SendMail.java
    * Created on 19 April, 2010, 10:14 AM
    * To change this template, choose Tools | Template Manager
    * and open the template in the editor.
    package utility;
    import java.io.Console;
    import javax.mail.*;
    import javax.mail.internet.*;
    import javax.activation.*;
    import java.util.*; 
    * @author Khushbu
    * @version
    public class SendMail {
    String username=null;
    String password=null;
    /** Creates a new instance of SendMail */
    public SendMail() {
    public void postMail( String recipients[ ], String subject, String message, String from, String pwd) throws MessagingException
    boolean debug = false;
    //Set the host smtp address
    Properties props = new Properties();
    //props.put("mail.smtp.host", "smtp.live.com");
    String host="smtp.gmail.com";
    props.put("mail.smtps.auth", "true"); 
    // Authenticator a1= new PopupAuthenticator();
    // create some properties and get the default Session
    Session session = Session.getDefaultInstance(props, null);
    // create a message
    Message msg = new MimeMessage(session);
    // set the from and to address
    //InternetAddress addressFrom = new InternetAddress(from);
    InternetAddress[] addressTo = new InternetAddress[recipients.length]; 
    for (int i = 0; i < recipients.length; i++)
    addressTo[i] = new InternetAddress(recipients[i]);
    msg.setRecipients(Message.RecipientType.TO, addressTo);
    // Setting the Subject and Content Type
    msg.setContent(message, "text/plain");
    username = from;
    password = pwd; 
    Transport t = session.getTransport("smtps");
    try {
    t.connect(host, username, password);
    //t.connect(host, username);
    t.sendMessage(msg, msg.getAllRecipients());
    catch(Exception ex)
    finally {
    Last edited by khushbu; May 21st, 2010 at 06:34 AM. Reason: Please use code tags.

  2. #2
    Super Moderator Json's Avatar
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    Default Re: JavaMail and Gmail

    What exception are you seeing on the XP machine then?

    // Json

  3. #3
    Junior Member
    Join Date
    May 2010
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    Default Re: JavaMail and Gmail

    The exception generated is:

    javax.mail.MessagingException: can't determine local email address
    Last edited by khushbu; May 21st, 2010 at 06:34 AM.

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