'Change the message from existing uid to new_uid
If the backend supports it. IMAP does not and will throw errors.'

def change_message_uid(self, uid, new_uid):

    raise OfflineImapError(('IMAP    backend    cannot    change    a    messages    UID    from    %d    to    %d' % (uid, new_uid)), OfflineImapError.ERROR.MESSAGE)
