Regarding my problem with some chars from @kasdk: The txtnish output looks fine. As I don't see anything in my program that could cause this I asked in the #golang #xmpp room. Let's see if someone has a good idea.

Anyone using sendxmpp wants to try go-sendxmpp. It should already cover the most important use cases and I would be interested if it was compatible in your use case. https://salsa.debian.org/mdosch-guest/go-sendxmpp #xmpp #golang