InternetAddress addressTo = new InternetAddress(recipient);
msg.setRecipient(Message.RecipientType.TO, addressTo);
msg.setSubject(subject);
msg.setContent(message, "text/plain");
SMTPTransport t = (SMTPTransport) session.getTransport("smtps");
t.connect(mailhost, authUsername, authPassword);
logger.debug("smtps: connected to " + mailhost);
t.sendMessage(msg, msg.getAllRecipients());
t.close();
logger.info("mail send to " + recipient);
}