private Properties getServerProperties() {
		 Properties properties = new Properties();
		 properties.put("mail.store.protocol", protocol);
		 properties.put("mail.imap.port", port);
                 properties.put("mail.imap.starttls.enable", "true");		
	         return properties;
       }

	
	        Properties properties = getServerProperties();
		Session session = Session.getDefaultInstance(properties);
		session.setDebug(true);
	        store.connect("mail.мойдомен.ru", "мойящик@.мойдомен.ru", "1234");

A0 STARTTLS
A0 OK Begin TLS negotiation now.
DEBUG IMAP: STARTTLS Exception, THROW: 
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: