@Samsy@arbocenc#XMPP can run bridges (called "Transports" or "Gateways" in XMPP terms) since the early ages. And nowadays, there are modern ones with tight integrations: #Slidge being a flagship (including a #Matrix gateway), and I'm myself working on ActivityPub gateway and soon a email one with #Libervia. #Cheogram is also working on SMTP gateway. And #Biboumi is the flagship #IRC gateway.