This command will show you the list of all your MemoServ folders. You will also be able to view how many memos are in each folders, how many are read and unread. All registered Nicknames automatically get 3 default folders, these folders cannot be deleted. They are INBOX, SYSTEM, and RECYCLER.
/msg memoserv stat
This gives you the same information you get from LIST when all your folders are closed. But you can get the stat information without closing your current folder. So if you have a folder open, but want to see if you have unread memos in another folder, you can use stat to find out with a single command.