While you are reading a folder, most nn commands work the same as
when you are reading a newsgroup.  The following commands work a
little differently.

  Type     In order to...
  ====     ==============
  C        Delete a message from the folder
  s or S   Save message(s) to a different folder; you will be asked where

When you leave a folder you will be asked if you really want to
delete any messages that you deleted with C, or saved with S or s.

WARNING: Since nn does not use lock files you should not use nn to
delete messages in a folder which is receiving messages (e.g., via a
mail processor like procmail, mailagent, deliver, or filter).

Some parts © 2009 Advameg, Inc.