[renk]

If you know what you're doing, XMPP is as secure and more reliable/efficient than Matrix. Really snappy in comparison. Other messengers build on it (Kik for example but also in enterprises). If you're working in security, chances are you're still on XMPP somewhere. That being said, the protocol with its extensions is a bit of a monstrosity, and that also shows in the codebases of available servers. It's no wonder, since XMPP does many things similar to SMTP (federated, based on DNS etc.). I would love if there was a modern, all in one XMPP server written in Go or Rust that includes all the protocol features in a sensible, opinionated package that is straightforward to deploy.. Until then, you'll find me fixing my Prosody instance..