Upload attachments by email

[Lam Le]

Hi all,
I am thinking about a solution that you can upload attachments to server by sending email to specific email address.
Searching in the internet, there is one component can do that but it is not free. I think we can do similar thing.
First we build an application to receive new emails, then get the attachments, save it to a temporary folder and then upload it to server.
I am having problems with receiving email as I do not know how to configure pop3 server.
Here is my code:

 
package document;

//Fetching Mail

import java.io.*;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;

public class GetMessageExample {
  public static void main(String args[]) throws Exception {


    String host = "pop.mail.yahoo.com";
    String username = "user";
    String password = "password";

    // Create empty properties
    Properties props = new Properties();

    // Get session
    Session session = Session.getDefaultInstance(props, null);

    // Get the store
    Store store = session.getStore("pop3");
    store.connect(host,110, username, password);

    // Get folder
    Folder folder = store.getFolder("INBOX");
    folder.open(Folder.READ_ONLY);

    BufferedReader reader = new BufferedReader(new InputStreamReader(
        System.in));

    // Get directory
    Message message[] = folder.getMessages();
    for (int i = 0, n = message.length; i < 2; i++) {
      System.out.println(i + ": " + message[i].getFrom()[0] + "\t"
          + message[i].getSubject());

      System.out.println("Read message? [YES to read/QUIT to end]");
      String line = reader.readLine();
      if ("YES".equalsIgnoreCase(line)) {
        System.out.println(message[i].getContent());
      } else if ("QUIT".equalsIgnoreCase(line)) {
        break;
      }
    }

    // Close connection
    folder.close(false);
    store.close();
  }
}