Re: java mail api

i m trying sending mail with thia code ingmail code running success
fully but with rediffmail or yahoo it cannot run plzz help me

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public class mail1
{
        String d_email = "akhil.sri@tgmail.com",
           d_password = "im*******",
           d_host = "smtp.gmail.com",
           d_port = "587",
           m_to = "akhil_4u47@rediffmail.com",
           m_subject = "Testing",
           m_text = "Hey, this is the testing email using
smtp.gmail.com.";
   public static void main(String[] args)
   {
               String[] to={"akhil_4u47@rediffmail.com"};
             // String[] cc={"XXX@yahoo.com"};
              // String[] bcc={"XXX@yahoo.com"};
               //This is for google
                       mail1.sendMail("akhil.sri@technolife.in",
                               "KB*!O^L7",
                               "smtp.gmail.com,
                               "587",
                               "true",
                               "true",
                               true,

                              "javax.net.ssl.SSLSocketFactory",
                              "false",
                              to,
                               "hiiiiiiiiiii",
                               "hiii this is akhil sening mail via
smtp and java mail api");
   }

       public synchronized static boolean sendMail(
               String userName,
               String passWord,
               String host,
               String port,
               String starttls,
               String auth,
               boolean debug,
               String socketFactoryClass,
               String fallback,
               String[] to,
               String subject,
               String text){
               Properties props = new Properties();
               //Properties props=System.getProperties();
       props.put("mail.smtp.user", userName);
       props.put("mail.smtp.host", host);
               if(!"".equals(port))
       props.put("mail.smtp.port", port);
               if(!"".equals(starttls))
       props.put("mail.smtp.starttls.enable",starttls);
       props.put("mail.smtp.auth", auth);
               if(debug){
               props.put("mail.smtp.debug", "true");
               }else{
               props.put("mail.smtp.debug", "false");
               }
               if(!"".equals(port))
       props.put("mail.smtp.socketFactory.port", port);
               if(!"".equals(socketFactoryClass))
       props.put("mail.smtp.socketFactory.class",socketFactoryClass);
               if(!"".equals(fallback))
       props.put("mail.smtp.socketFactory.fallback", fallback);
           System.out.println("properties");
       try
       {
                       Session session =
Session.getDefaultInstance(props, null);
           session.setDebug(debug);
           MimeMessage msg = new MimeMessage(session);
           msg.setText(text);
           msg.setSubject(subject);
           msg.setFrom(new
InternetAddress("akhil_4u47@rediffmail.com"));
                       for(int i=0;i<to.length;i++){
           msg.addRecipient(Message.RecipientType.TO, new
InternetAddress(to[i]));
                       }
// for(int i=0;i<cc.length;i++){
// msg.addRecipient(Message.RecipientType.CC, new
InternetAddress(cc[i]));
// }
// for(int i=0;i<bcc.length;i++){
// msg.addRecipient(Message.RecipientType.BCC, new
InternetAddress(bcc[i]));
// }
           msg.saveChanges();
                       Transport transport =
session.getTransport("smtp");
                       transport.connect(host, userName, passWord);
                       transport.sendMessage(msg,
msg.getAllRecipients());
                       transport.close();
                       return true;
       }
       catch (Exception mex)
       {
           //mex.printStackTrace();
           System.out.println("error"+mex);
                       return false;
       }
       }

}