Fail to send email

Question

Hello,
I have took a copy of the SendEmail.java program, compiled it successfully in my local computer.
When sending a email, I fail.
Here is the source :
// File Name SendEmail.java
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 = "[email protected]";
      // Sender's email ID needs to be mentioned
      String from = "[email protected]";
      // Assuming you are sending email from localhost
      String host = "localhost";
      // Get system properties
      Properties properties = System.getProperties();
      // Setup mail server
      properties.setProperty("maor1", 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 get this error :
C:\java>java SendEmail
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhos
t, 25; timeout -1;
  nested exception is:
        java.net.ConnectException: Connection refused: connect
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2053)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:69
7)
        at javax.mail.Service.connect(Service.java:364)
        at javax.mail.Service.connect(Service.java:245)
        at javax.mail.Service.connect(Service.java:194)
        at javax.mail.Transport.send0(Transport.java:253)
        at javax.mail.Transport.send(Transport.java:124)
        at SendEmail.main(SendEmail.java:48)
Caused by: java.net.ConnectException: Connection refused: connect
        at java.net.DualStackPlainSocketImpl.connect0(Native Method)
        at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
        at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
        at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
        at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
        at java.net.PlainSocketImpl.connect(Unknown Source)
        at java.net.SocksSocketImpl.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:312)
        at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:236)
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019)
        ... 7 more
Thank you for helping
Meir

Answer 1

Hello,
I understood my mistake.
I wrote :
// Setup mail server
      properties.setProperty("maor1", host);
instead of :
// Setup mail server
      properties.setProperty("mail.smtp.host", host);
Now it works well.
Thank you for helping.
Best regards
Meir