import javax.mail.*;
import javax.mail.internet.*;

svoid javaMail_sendThroughLocalhost(S from, S to, S subject, S text) {
  new Properties props;
  props.put("mail.smtp.host", "localhost");

  Message message = new MimeMessage(session);
  message.setFrom(from);
  message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
  message.setSubject(subject);
  message.setText(text);

  Transport.send(message);
}