docs: def send(self, send_to, from_who, subject, message, reply_to=None):
          """Send Email.
  
          To use this module pass in a message, send_to, from_who, and subject.
  
          :param send_to: ``str``
          :param from_who: ``str``
          :param subject: ``str``
          :param message: ``str``
          :param reply_to: ``str``
          """
          # Set the reply to address if it's None
          if reply_to is None:
              reply_to = from_who
  
          try:
              em_msg = text.MIMEText(
                  _text=message.encode('utf8'),
                  _subtype='plain',
                  _charset='utf8'
              )
              em_msg["Subject"] = subject
              em_msg["From"] = from_who
              em_msg["To"] = send_to
              em_msg["Reply-To"] = reply_to
  
              # Send Customer Messages
              built_message = em_msg.as_string()
  
              self.smtp.sendmail(
                  from_addr=em_msg["From"],
                  to_addrs=em_msg["To"],
                  msg=built_message
              )
          except Exception as exp:
              msg = 'Failed to send message due to "%s"' % exp
              self.log.error(msg)
              raise cloudlib.MessageFailure(msg)
          else:
              self.log.debug(message)
          finally:
              self.smtp.quit()