Javax.mail.MessagingException: 505 Client was not authenticated

Question

Hi!,
I got the following error:
Exception in thread "main" javax.mail.MessagingException: 505 Client was not authenticated
at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:507)
at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:312)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:168)
at HelloMail.main(HelloMail.java:35)
This is the code:
To send an email I need authentification, and I include the mail.smtp.auth propertie and
"message.saveChanges();
Transport transport = session.getTransport("smtp");
transport.connect("mail.xxx.com.mx","harriaga",passw);
transport.sendMessage(message,message.getAllRecipients());
transport.close();"
Do you know if I am skip something.
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
public class HelloMail {
public static void main(String args[]) throws Exception {
String host="mail.xxx.com.mx"; //obviously doesn't work
String from="[email protected]"; //sender's email
String to ="[email protected]" ; //receiver's email
Properties props = System.getProperties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");
Session session=Session.getInstance(props,null);
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new
InternetAddress(to));
message.setSubject(" My Test HTML email ");
message.setText(" Here is the content ");
message.saveChanges();
Transport transport = session.getTransport("smtp");
transport.connect("mail.xxx.com.mx","harriaga",passw);
transport.sendMessage(message,message.getAllRecipients());
transport.close();
Thanks for all,
HAG.

Answer 1

HAG,
you need to create a session object passing a valid authenticator. In other words,
MyAuthenticator auth = new MyAuthenticator ();
Session session = Session.getInstance(props, auth);where MyAuthenticator is something like
public class MyAuthenticator extends Authenticator{
  public PasswordAuthentication getPasswordAutentication(){
    return new PasswordAuthentication( "user", "password");
}You obviously need to replace username and password with data valid for your e-mail account.
Hope this helps,
gulfi