def stop(self, name):
        raise NotImplementedError
FQDN check with EasyEngine, for mail server hostname must be FQDN
dataset/ETHPy150Open deis/deis/controller/scheduler/__init__.py/AbstractSchedulerClient.stop--crossover with--dataset/ETHPy150Open EasyEngine/easyengine/ee/core/checkfqdn.py/check_fqdn