Question

I wrote a small email sending program in java, it has from, to and reply-to address, when the client tries to reply to the mail, it should be able to reply to the reply-to address.
Currently it’s not working, my code is below:

// 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 = "[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();
    properties.put("mail.smtp.from", "[e-mail]");

      // 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("New Message goes here");

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

I used real gmail accounts. Can anyone help..?

Answer 1

Message.setReplyTo()?

Please note that:

• “from” is not the same as “reply to”
• according to the spec, the property for from-address is “mail.from”
• the documentation for getDefaultInstance specifies that this only creates a new instance if there isn’t an existing default instance and the properties are only used when creating a new instance. Further, the default instance is a global value and will be re-used, so unless you want the same “from”-address on all your email, you need to create new sessions (using getInstance())