> This sucks, and it could be solved at the protocol level with JMAP. It couldn’t. You’ve failed to understand the reasoning summarised in the first paragraph.

> This sucks, and it could be solved at the protocol level with JMAP. It couldn’t. You’ve failed to understand the reasoning summarised in the first paragraph. E2EE comes at a significant and fundamental cost, and not one most people want to pay. There’s a reason why your Proton Mail and the likes are crippled in ways like this: because that’s the best we know how to do with that kind of approach. There’s also the matter that first-party end-to-end encryption is snake oil: <https://hn.algolia.com/?query=chrismorgan+snake+oil&type=comment https://hn.algolia.com/?query=chrismorgan+snake+oil&type=com...>. See also Fastmail’s reasoning for not offering any of this kind of thing: <https://www.fastmail.com/blog/why-we-dont-offer-pgp/ https://www.fastmail.com/blog/why-we-dont-offer-pgp/>.