i got problem with sending mail to yahoo using JavaMail API

[Kirankumar Dangeti]

Hi All
I got a problem with sending mail to yahoo
public class SendingMail {
public SendingMail() throws AddressException, MessagingException
{
String host = "smtp.mail.yahoo.com";
String from = "[e-mail]";
String to = "[e-mail]";
Properties props = System.getProperties();
props.put("mail.smtp.host", host);
Session session = Session.getDefaultInstance(props,null);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));
message.setSubject("Hello JavaMail");
message.setText("Welcome to JavaMail");
Transport.send(message);
System.out.println("Completed");

}

public static void main (String args[]) throws Exception {
SendingMail sm=new SendingMail();
}


}

I got The error below
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: 530 authentication required - for help go to http://help.yahoo.com/help/us/mail/pop/pop-11.html
at javax.mail.Transport.send0(Transport.java:219)
at javax.mail.Transport.send(Transport.java:81)
at SendingMail.<init>(SendingMail.java:33)
at SendingMail.main(SendingMail.java:39)
Exception in thread "main"

Can any one help to resolve the above problem
and i also need to send mails to any other mail server plz help to reslovet the problem

[Xiao Ava]

you need to authenticate yourself
example if you are the sender then your user name and password have to be authenticate according to the 'from' email service provider.