Ler emails recebidos usando API JavaMail

String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

Properties pop3Props = new Properties();

  pop3Props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
  pop3Props.setProperty("mail.pop3.socketFactory.fallback", "false");
  pop3Props.setProperty("mail.pop3.port",  "995");
  pop3Props.setProperty("mail.pop3.socketFactory.port", "995");

URLName url = new URLName("pop3", host, 995, "",username, passwoed);

import com.sun.mail.pop3.*;
import java.util.*;
import javax.activation.DataHandler;
import javax.mail.*;
import javax.mail.internet.*;

public class ReadMultipartMail {

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

  String host = "pop3.live.com";
  String username = "meuemail";
  String passwoed = "senha";

  Properties props = System.getProperties();
  
  String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";

  Properties pop3Props = new Properties();

  pop3Props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
  pop3Props.setProperty("mail.pop3.socketFactory.fallback", "false");
  pop3Props.setProperty("mail.pop3.port",  "995");
  pop3Props.setProperty("mail.pop3.socketFactory.port", "995");

  URLName url = new URLName("pop3", host, 995, "",username, passwoed);
  
  Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
                             protected PasswordAuthentication getPasswordAuthentication() 
                             {
                                   return new PasswordAuthentication(usename, passwoed);
                             }
                        });

  Store store = new POP3SSLStore(session, url);
  store.connect();
            
  Folder folder = store.getFolder("inbox");

  if (!folder.exists()) {
  System.out.println("No INBOX...");
  System.exit(0);
  }
  folder.open(Folder.READ_WRITE);
  Message[] msg = folder.getMessages();

  for (int i = 0; i < msg.length; i++) {
  System.out.println("------------ Message " + (i + 1) + " ------------");
  String from = InternetAddress.toString(msg[i].getFrom());
  if (from != null) {
  System.out.println("From: " + from);
  }

  String replyTo = InternetAddress.toString(
  msg[i].getReplyTo());
  if (replyTo != null) {
  System.out.println("Reply-to: " + replyTo);
  }
  String to = InternetAddress.toString(
  msg[i].getRecipients(Message.RecipientType.TO));
  if (to != null) {
  System.out.println("To: " + to);
  }

  String subject = msg[i].getSubject();
  if (subject != null) {
  System.out.println("Subject: " + subject);
  }
  Date sent = msg[i].getSentDate();
  if (sent != null) {
  System.out.println("Sent: " + sent);
  }

  System.out.println();
  System.out.println("Message : ");

  Multipart multipart = (Multipart) msg[i].getContent();
  
  for (int x = 0; x < multipart.getCount(); x++) {
  BodyPart bodyPart = multipart.getBodyPart(x);

  String disposition = bodyPart.getDisposition();

  if (disposition != null && (disposition.equals(BodyPart.ATTACHMENT))) {
  System.out.println("Mail have some attachment : ");

  DataHandler handler = bodyPart.getDataHandler();
  System.out.println("file name : " + handler.getName());
  } else {
  System.out.println(bodyPart.getContent());
  }
  }
  System.out.println();
  }
  folder.close(true);
  store.close();
  }

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

public class ReadMultipartMail_1 {

    public static void main(String args[]) throws Exception {
        
        
        final String host = "pop3.live.com";
        final String username = "meuEmail";
        final String passwoed = "minhaSenha";
        
        try{
                Properties props = new Properties();
                props.put("mail.transport.protocol", "pop3");
                props.put("mail.smtp.host", host);
                props.put("mail.smtp.socketFactory.port", "995");
                props.put("mail.smtp.socketFactory.fallback", "false");
                props.put("mail.smtp.starttls.enable", "true");
                props.put("mail.smtp.auth", "true");
                props.put("mail.smtp.port", "995");
                // Get session
                Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
                                             protected PasswordAuthentication getPasswordAuthentication() 
                                             {
                                                   return new PasswordAuthentication(username, passwoed);
                                             }
                                  });
                //session.setDebug(true);
                // Get the store
                System.out.println("Session complete");

                Store store = session.getStore("pop3");
                System.out.println("Store complete");
                store.connect(host,username,passwoed);
                System.out.println(store.isConnected());

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

                // Get directory
                Message message[] = folder.getMessages();

                for (int i=0, n=message.length; i<n; i++) 
                   {
                   System.out.println(i + ": " + message[i].getFrom()[0] 
                     + "\t" + message[i].getSubject());
                   }

                // Close connection 
                folder.close(false);
                store.close();
         }catch(Exception e){
             System.out.println(e);
             e.printStackTrace();}
         }
}

 

javax.mail.MessagingException: Connect failed;
  nested exception is:
  nested exception is:
	java.net.ConnectException: Connection timed out: connect
	java.net.ConnectException: Connection timed out: connect
	at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:148)
	at javax.mail.Service.connect(Service.java:275)
	at javax.mail.Service.connect(Service.java:156)
	at Funcoes.Email.ReadMultipartMail_1.main(ReadMultipartMail_1.java:38)
Caused by: java.net.ConnectException: Connection timed out: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
	at java.net.Socket.connect(Socket.java:529)
	at java.net.Socket.connect(Socket.java:478)
	at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
	at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
	at com.sun.mail.pop3.Protocol.<init>(Protocol.java:81)
	at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java:201)
	at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:144)
	... 3 more 

//Your message content returning String and you are trying to type cast to Multipart.

Object content = msg.getContent();  
if (content instanceof String)  
{  
    String body = (String)content;  
    ...  
}  
else if (content instanceof Multipart)  
{  
    Multipart mp = (Multipart)content;  
    ...  
}