IMAP now has UUIDs :) https://datatracker.ietf.org/doc/rfc8474/ https://datatracker.ietf.org/doc/rfc8474/ They were built with reference to how Google do thei

IMAP now has UUIDs :) https://datatracker.ietf.org/doc/rfc8474/ https://datatracker.ietf.org/doc/rfc8474/ They were built with reference to how Google do theirs so it will be relatively easy for them to support the standard names, similar to how special-use was built to give similar behaviour to XLIST.