![](https://upvote.au/pictrs/image/84065ed2-43b1-4ab2-8678-dfcd7e760a7b.jpeg)
![](https://fry.gs/pictrs/image/c6832070-8625-4688-b9e5-5d519541e092.png)
comes with the territory of encrypted email
AFAIK they haven’t tried to standardize their implementation, which to me implies that they’re not interested in interoperability. That’s unfortunate. I wouldn’t want to be locked in to a vendor like that.
At least some providers do try. FastMail published the spec for their modern, stateless replacement to IMAP through the IETF as “JMAP”, and built on top of existing RFCs where possible.
Apparently MacOS apps can be sandboxed and store data securely such that no other apps can access it, in an encrypted format. I wasn’t aware of this either, but it’s been a while since I’ve used MacOS. It sounds like the ChatGPT app explicitly opted out from this sandboxing model.