Mac User group's BBS is awaiting commissioning of a newer server: currently using a 2nd-hand 2008 Apple Xserve donated to the club by Apple Australia in 2010. It's too old to run the latest version of OpenText's FirstClass software because it needs an OS newer than 10.7.5, which is the best the Xserve can use. We have acquired & updated a 2012 Mac Mini, we have the rack-mount & the required power cable.
Just waiting on a response from OpenText about issues re the upgrade from OS 10.7.5 to 10.12. So the new server won't be ready this week.