Apple announced this morning that many macOS Server services will be deprecated. The FMP community might want to take a look at this. MacObserver reports:
A number of services will be deprecated, and will be hidden on new installations of an update to macOS Server coming in spring 2018. If you’ve already configured one of these services, you’ll still be able to use it in the spring 2018 macOS Server update.
These deprecated services will be removed in a future release of macOS Server, so those depending on them should consider alternatives, including hosted services. Deprecated services are listed below. Links to potential replacements are provided underneath each deprecated service.