@inthehands Not only is email not technically designed for E2E, it's not really socially designed for it. Given that email addresses get shared with various people and organizations, and they're common vectors for spam, phishing, and the like, I'd assume most email users *want* their ISP to be able to scan and filter that stuff out, rather than try to do it themselves. But that means it can't be E2E, and the users have to have a certain level of trust in their ISP.