https://snikket.org/ is the easy to configure XMPP server, but it still needs SSL certificates. But that’s fairly easy to do with Snikket AFAIK.
Or you could simply ask the Snikket developers to host a server for you for a small fee. If you are US or Canada based https://jmp.chat/ is also a great service, and it includes a free Snikket server as an add-on.
https://snikket.org/ is the easy to configure XMPP server, but it still needs SSL certificates. But that’s fairly easy to do with Snikket AFAIK.
Or you could simply ask the Snikket developers to host a server for you for a small fee. If you are US or Canada based https://jmp.chat/ is also a great service, and it includes a free Snikket server as an add-on.