@dancefighter69 We have a pretty awesome XMPP server at the Chaostreff Bern. But then, I would think so of course, since I am the one maintaining it ;)
https://chaostreffbern.ch/en/jabber.html
For clients I recommend Dino on desktop and conversations on Android.
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@vimja @dancefighter69 if there are any iOS users in the mix, then Snikket is about the best you can get as it's one of the few that can handle notifications properly on that system. They also offer hosting for the service side.
