I wonder if there is still a possibility to write a SERVER XMPP in C #. I've tried searching the internet on many sites, and they only make the CLIENT available. I do not know if the client can be used for this function, I know that XMPP is very old, but I need this to work with a game system.
I have tried OpenFire and Jabber, but I want to work with custom queries, and connect to a database, connect to a dedicated server, etc.