I tried chinese in postfix+cyrus-imap and in Outlook Express 5, the "Inbox" is still the one in chinese, but the "Sent Items" and "Drafts" folders which I saw in english IMAP client become normal folders, and there are another folder instead of them in chinese in chinese name.
so, does IMAP server not provide a uniform interface? or just the problem of IMAP protocol? or just my fault to set up something wrong?? yes, the "Inbox" is good at all in chinese. T