get session to send mail

def getSession(setup: ServerSetup): Session = {
val props: Properties = System.getProperties;
props.put("mail.smtps.starttls.enable", "true");
if (setup.isSecure()) {
props.setProperty("mail.smtp.socketFactory.class", classOf[DummySSLSocketFactory].getName);
}
props.setProperty("mail.transport.protocol", setup.getProtocol());
props.setProperty("mail.smtp.host", String.valueOf(setup.getBindAddress()));
props.setProperty("mail.smtp.port", String.valueOf(setup.getPort()));
props.setProperty("mail.smtps.port", String.valueOf(setup.getPort()));
return Session.getInstance(props, null);
}