#chatmail servers are fully interoperate with classic e-mail servers. But end-to-end OpenPGP encryption is required (#autocrypt or #securejoin) and not all e-mail apps manage it in the automatic way that Delta Chat does it. Chatmail servers are minimal Postfix/Dovecot setups, fully FOSS, and anyone can run an chatmail server instance permission free without telling us.

That’s actually the one thing I’m most looking forward to when I can finally make Ltt.rs my primary email client: Good, native #autocrypt / #openpgp support.

The OpenPGP spec or even the libraries aren’t the problem. It’s just bad clients that treat E2EE as an afterthought.

#JMAP