Right now afraid @delta might be so driven by the messenger security arms race that it transforms from "IM via SMTP+IMAP" into some sort of overlay protocol to SMTP that completely abstracts itself from email and abandons interoperability.
you are not alone worrying. Besides what this social media profile posts, there is a lot of lively discussion going on beneath. We care for end-to-end e-mail interoperability. A bunch of us are going to the #OpenPGP2025 summit starting tomorrow. There is a lot of specs and standards we follow and contribute to: https://github.com/chatmail/core/blob/main/standards.md
However, multi-MUA compatibility on an e-mail address is a separate issue. #chatmail relays are optimized for instant messaging.
Delta Chat •
Inhaltswarnung: CW Messenger Security
However, multi-MUA compatibility on an e-mail address is a separate issue. #chatmail relays are optimized for instant messaging.
core/standards.md at main · chatmail/core
GitHub