Java working with javax.mail

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Java

I have a program that get/read emails from a server using POP3.

public static ArrayList<MessageModel> GetMessage(String host, String storeType, String username, String password, String foldername) {
    ArrayList<MessageModel> list = new ArrayList<>();

    Properties properties = new Properties();
    properties.put("mail.pop3.host", host);
    Session session = Session.getDefaultInstance(properties);

    try {
        POP3Store store = (POP3Store) session.getStore(storeType);
        store.connect(username, password);

        Folder folder = store.getFolder(foldername);
        folder.open(Folder.READ_WRITE);
        Message[] messages = folder.getMessages();
        for(Message msg: messages) {
            MessageModel model = new MessageModel();
            Enumeration headers = msg.getAllHeaders();
            while (headers.hasMoreElements()) {
                Header h = (Header) headers.nextElement();
                if(h.getName().toUpperCase().contains("MESSAGE-ID")) model.setId(h.getValue());
            }
            model.setSubject(msg.getSubject());
            model.setContent(msg.getContent());
            for(Address _from: msg.getFrom())
                model.addFrom(_from.toString());
            try {
                for(Address _to: msg.getRecipients(Message.RecipientType.TO))
                    model.addTo(_to.toString());
                if(msg.getRecipients(Message.RecipientType.CC) != null) {
                    for(Address _Cc: msg.getRecipients(Message.RecipientType.CC))
                        model.addCc(_Cc.toString());
                }
            } catch (MessagingException ex) {
                Logger.getLogger(Email.class.getName()).log(Level.SEVERE, null, ex);
            }
            msg.setFlag(Flags.Flag.SEEN, true);
            list.add(model);
        }
        folder.close(true);
        store.close();
    } catch (MessagingException | IOException ex) {
        Logger.getLogger(Email.class.getName()).log(Level.SEVERE, null, ex);
    }
    return list;
}

On net the msg.setFlag(Flags.Flag.SEEN, true); is not working because I'm not using IMAP protocol. But when I did, I cannot connect to the mail server.
This is the error
Exception in thread "main" javax.mail.MessagingException: Network is unreachable: connect;

public static void doit() throws MessagingException, IOException {
    Folder folder = null;
    Store store = null;
    try {
      Properties props = System.getProperties();
      props.setProperty("mail.store.protocol", "imaps");

      Session session = Session.getDefaultInstance(props, null);
      store = session.getStore("imaps");
      store.connect("mail.com.ph",",myemail@mail.com.ph", "password");
      folder = store.getFolder("Inbox");
      folder.open(Folder.READ_WRITE);
      Message messages[] = folder.getMessages();
      System.out.println("No of Messages : " + folder.getMessageCount());
      System.out.println("No of Unread Messages : " + folder.getUnreadMessageCount());
      for (int i=0; i < messages.length; ++i) {
        System.out.println("MESSAGE #" + (i + 1) + ":");
        Message msg = messages[i];
        String from = "unknown";
        if (msg.getReplyTo().length >= 1) {
          from = msg.getReplyTo()[0].toString();
        }
        else if (msg.getFrom().length >= 1) {
          from = msg.getFrom()[0].toString();
        }
        String subject = msg.getSubject();
        System.out.println("Saving ... " + subject +" " + from);
        // you may want to replace the spaces with "_"
        // the TEMP directory is used to store the files
        String filename = "c:/temp/" +  subject;
        saveParts(msg.getContent(), filename);
        msg.setFlag(Flags.Flag.SEEN,true);
        // to delete the message
        // msg.setFlag(Flags.Flag.DELETED, true);
      }
    }
    finally {
      if (folder != null) { folder.close(true); }
      if (store != null) { store.close(); }
    }
  }