public void sendMessage() throws Exception{
		// Get system properties
		Properties props = System.getProperties();
		
	   // mail server connection parameters
		props.put("mail.smtp.host", smtpHost);
		props.put("mail.smtp.port", 587);//gmail's smtp port
		props.put("mail.smtp.auth", "true");
		props.put("mail.smtp.starttls.enable", "true");

		// Get session		
		javax.mail.Session session = javax.mail.Session.getDefaultInstance(props);
		
		// creates a new e-mail message
		MimeMessage message = new MimeMessage(session);

		javax.mail.internet.InternetAddress[] iadresses = null;
		
		// create the message part 
		MimeBodyPart messageBodyPart = new MimeBodyPart();
	
		messageBodyPart.setContent(content,"text/html");

        
		try{
			if(to != null){
				iadresses = javax.mail.internet.InternetAddress.parse(to, false);
				message.setRecipients(javax.mail.Message.RecipientType.TO, iadresses);
			}else{
				throw new javax.mail.MessagingException("The mail message requires a 'TO' adress!");
			}
			if(from != null){
				message.setFrom(new javax.mail.internet.InternetAddress(from));
			}else{
				throw new javax.mail.MessagingException("The mail message requires a 'FROM' adress!");
			}
			if(subject != null){
				
				message.setSubject(subject,"UTF-8");
			}
javax.mail.Transport tr = session.getTransport("smtp");
			//parameters to connect gmail
			tr.connect(smtpHost, "********", "******");
			message.saveChanges();
			// sends the e-mail
			tr.sendMessage(message, message.getAllRecipients());
			tr.close();
			
		}catch(Exception e){
			throw e;
		}
	}

		messageBodyPart.setHeader("Content-Type","text/plain; charset=utf-8"); 
		messageBodyPart.setContent(content,"text/plain");
                message.setSubject(subject);  // message.setSubject(subject,"UTF-8"); или message.setSubject(subject, "text/plain"); -не работает