Authentication error : sendFailedException :Help needed

Question

Hello,
I am trying to make an e-mail client application. I am using the authentication to send the mail. I have applied the required code given in the sample application provided with JavaMail API. But every time the "useAuth" is displaying "false". Can anybody tell me how to inforce the Authentication.
Thanks.

Answer 1

Hi,
I have the same problem.
Here is my source code
import java.io.*;
import java.util.*;
import java.text.*;
import java.util.Date;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class EMailClient
     public static void main(String[] args) throws Exception {
               String recipients = "[email protected]"; //recipients comma separated list of recipients
               String copies = "";//copies comma separated list of copy-to recipients
                              String subject = "test";
                              String bodyText = "test you";
               String fromAddress ="[email protected]";
               String incomingMailHost = "pop.sbcglobal.yahoo.com";
               String outgoingMailHost = "smtp.sbcglobal.yahoo.com";
               String mailUser = "[email protected]";
               String mailPwd = "password";
               EMailClient eClient = new EMailClient(fromAddress,incomingMailHost,outgoingMailHost,mailUser,mailPwd);
eClient.send(recipients,copies,subject,bodyText);
public EMailClient (String address,
String getHost,
String sendHost,
String mailUser,
String mailPwd)
this.address = address;
this.getHost = getHost;
this.sendHost = sendHost;
this.mailUser = mailUser;
this.mailPwd = mailPwd;
protected void send(String recipients,
          String copies,
String subject,
               String bodyText) throws MessagingException,
AddressException,
NoSuchProviderException,
IOException
// create some properties and get the default Session
Properties props = System.getProperties();
props.put("mail.smtp.host", sendHost);
Session session = Session.getDefaultInstance(props,null);
session.setDebug(false);
// Log onto pop server first as security protocol may require this
Store store = session.getStore("pop3");
store.connect(getHost, mailUser, mailPwd);
store.close();
// Create a mime message
MimeMessage mail = new MimeMessage(session);
mail.setFrom(new InternetAddress(address));
StringTokenizer st = new StringTokenizer(recipients,",");
InternetAddress[] recList = new InternetAddress[st.countTokens()];
for (int r = 0; st.hasMoreTokens(); r++)
recList[r] = new InternetAddress(st.nextToken().trim());
mail.setRecipients(Message.RecipientType.TO, recList);
st = new StringTokenizer(copies,",");
InternetAddress[] copyList = new InternetAddress[st.countTokens()];
for (int c = 0; st.hasMoreTokens(); c++)
copyList[c] = new InternetAddress(st.nextToken().trim());
mail.setRecipients(Message.RecipientType.CC, copyList);
mail.setSubject(subject);
mail.setText(bodyText);
mail.setSentDate(new Date());
// Send the message
Transport trans = session.getTransport("smtp");
trans.connect(sendHost, mailUser, mailPwd);
System.out.println("Conected: "+ trans.isConnected());
trans.sendMessage(mail, mail.getAllRecipients());
trans.close();
The message I got is as follows
C:\>java EMailClient
Conected: true
Exception in thread "main" javax.mail.MessagingException: 530 authentication req
uired - for help go to http://help.yahoo.com/help/us/sbc/dsl/mail/pop/pop-11.htm
l
at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:879)
at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:599)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:319)
at EMailClient.send(EMailClient.java:105)
at EMailClient.main(EMailClient.java:35)
I appreciated if anyone can help.
Regards.
Sha