Reviewer: Yaron Sheffer Review result: Has Nits The document defines a simple extension to the IMAP LIST command. - LSUB is mentioned in the Introduction, but then never mentioned again. Is the extension applicable to it? - The document does not formally define the syntax of the MYRIGHTS response. Presumably it is exactly as in RFC 4314. - The document should refer to the security considerations of RFC 4314. Specifically, does the first paragraph of those security considerations also apply here?