I think we need setquota before we can announce quota capability.
Hm couldn't setquota be implemented using a default answer as described in the RFC: "NO - setquota error: can't set that data"
If you adhere strictly to the standards: Isn't the UTF-8 charset support missing in the SORT Extension as it *must* be implemented according to chapter 3 in http://www.ietf.org/internet-drafts/draft-ietf-imapext-sort-17.txt -- Wolfram