SendFailedException Error

Question

Hi,
Please take a look at the following source code. It's a simple javamail application to send an Email, got from java.sun.com:
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
public class SimpleSender {
public static void main (String args[]) throws Exception {
String host = "mail.wishbd.com";
String from = "[email protected]";
String to = "[email protected]";
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);
The code compiles successfully, but when it is run, the following error shows up:
D:\>java SimpleSender
Exception in thread "main" javax.mail.SendFailedException: Sending failed;
nested exception is:
class javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
class javax.mail.SendFailedException: 550 not local host yahoo.com, not a gateway
at javax.mail.Transport.send0(Transport.java:218)
at javax.mail.Transport.send(Transport.java:80)
at SimpleSender.main(SimpleSender.java:18)
Now, if the "to" field is changed to (say) [email protected], the application runs and the message is sent succesfully to the address. You can check it for yourself by compiling. I have given here the full source code.
What's wrong? Why is the javax.mail.SendFailedException shown up? Could you please, help?
Thanks,
... M. Chisty

Answer 1

Looks like your mail server is set up not to permit relaying, or sending email outside your local domain. See the mail server admin people.
SH