[brongondwana]

That's why a major focus of JMAP is to be able to be put in front of an IMAP server with a proxy (and it takes advantage of CONDSTORE if present - we built from an IMAP base)

Honestly, if it's not significantly nicer to work with than IMAP, it won't see traction, and that's fine.

Mind you - MOVE took bloody long enough in IMAP, I was arguing for it for years before it finally got support behind it. There's still not much support for SUBMIT via IMAP though, which means multiple connections via different protocols to do basic emailing, with all the support fun that entails.

Anyway - worst case, we still have a better protocol for our own stuff, and that's not nothing.