import java.security.GeneralSecurityException;import java.util.Properties;import javax.mail.Folder;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Session;import javax.mail.Store;import com.sun.mail.util.MailSSLSocketFactory;public class App {    public static void main( String[] args ) throws MessagingException, GeneralSecurityException    {        MailSSLSocketFactory sf = new MailSSLSocketFactory();        sf.setTrustAllHosts(true);         Properties properties = new Properties();                //the host you can give the IP address or the url of Exchange server         properties.put("mail.imap.host", "10.100.1.x");         properties.put("mail.imap.starttls.enable", "true");         properties.put("mail.imap.ssl.socketFactory", sf);                 properties.setProperty("mail.imap.starttls.enable", "true");         properties.setProperty("ssl.SocketFactory.provider", "my.package.name.ExchangeSSLSocketFactory");         properties.setProperty("mail.imap.socketFactory.class", "my.package.name.ExchangeSSLSocketFactory");               Session emailSession = Session.getDefaultInstance(properties,null);         emailSession.setDebug(true);         Store store = emailSession.getStore("imap");         store.connect("10.100.1.x","cloud_qa@wesoft.com", "ldap4$qa");         //create the folder object and open it         Folder emailFolder = store.getFolder("INBOX");         emailFolder.open(Folder.READ_ONLY);               //get the mail count. or you can do others in here        Message[] msg = emailFolder.getMessages();        System.out.println(msg.length);        System.out.println("----finished------");    }}