Error Sending mail using JavaMail.

[Hasif Subair]

Hi,
I am learning to send an email from my java application. I am using jdk1.6, jboss AS 7.1.1 and I have downloaded the latest JavaMail api and JAF jars.
I have tried this tutorial from tutorialspoint

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

public class SendEmail
{
   public static void main(String [] args)
   {
      
      // Recipient's email ID needs to be mentioned.
      String to = "[e-mail]";

      // Sender's email ID needs to be mentioned
      String from = "[e-mail]";

      // Assuming you are sending email from localhost
      String host = "localhost";

      // Get system properties
      Properties properties = System.getProperties();

      // Setup mail server
      properties.setProperty("mail.smtp.host", host);

      // Get the default Session object.
      Session session = Session.getDefaultInstance(properties);

      try{
         // Create a default MimeMessage object.
         MimeMessage message = new MimeMessage(session);

         // Set From: header field of the header.
         message.setFrom(new InternetAddress(from));

         // Set To: header field of the header.
         message.addRecipient(Message.RecipientType.TO,
                                  new InternetAddress(to));

         // Set Subject: header field
         message.setSubject("This is the Subject Line!");

         // Now set the actual message
         message.setText("This is actual message");

         // Send message
         Transport.send(message);
         System.out.println("Sent message successfully....");
      }catch (MessagingException mex) {
         mex.printStackTrace();
      }
   }
}

And I am getting this error.

javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25;
  nested exception is:
	java.net.ConnectException: Connection refused: connect
	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1972)
	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
	at javax.mail.Service.connect(Service.java:295)
	at javax.mail.Service.connect(Service.java:176)
	at javax.mail.Service.connect(Service.java:125)
	at javax.mail.Transport.send0(Transport.java:194)
	at javax.mail.Transport.send(Transport.java:124)
	at test.SendMail.main(SendMail.java:60)
Caused by: java.net.ConnectException: Connection refused: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
	at java.net.Socket.connect(Socket.java:519)
	at java.net.Socket.connect(Socket.java:469)
	at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:319)
	at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:233)
	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1938)
	... 7 more

I have no clue what this error is. Is there anything needs to configured? Do I need an smtp server? if so how integrate it with jboss. And also if you could suggest a good tutorial for the same.

Any help will be very much appreciated.

Thanks,
Hasif

[Greg Charles]

Yes, the JavaMail API just interfaces with mail servers, it doesn't implement one. There are several free SMTP servers you could install for testing. You could also connect to your company's mail server, or if you have a gmail account, I believe you can connect to their SMTP server.

[Junilu Lacar]

There's also a fake SMTP server implementation called Dumbster that you can run to accept emails but not actually send them out. Useful for testing purposes. Otherwise, your ISP probably has a mail gateway that you can use.

[Hasif Subair]

Thanks you both for your reply.

@Greg Charles
Can you give me a working code or tutorial for sending mail through gmail. I have tried a few from the net, but none is working.

[Maneesh Godbole]

Moving to a more suitable forum

[James Boswell]

I second Junilu's suggestion. I've used Dumbster before, very useful for testing. It basically captures outgoing messages by listening on a particular port. You can even open the captured messages in your own email client (e.g. Outlook) to check their format and content. And on top of that, no emails are actually sent to the recipient but you can obviously see what the intended 'to' address is.

[Hasif Subair]

I resolved this by using Apache James mail server. I am able to send mail through Gmail.

[Hasif Subair]

For anyone looking having similar issues can try this tutorial here http://www.mastertheboss.com/jboss-application-server/379-jboss-mail-service-configuration.html