IMAP Server

[Michael ODonnell]

According to the "Definitions, and goals" section here:

   http://www.inter7.com/courierimap/README.maildirquota.html

...you shouldn't have to care:

   Maildir++ and Maildir shall be completely interchangeable.
   A Maildir++ client will be able to use a standard Maildir,
   automatically "upgrading" it in the process.  A Maildir
   client will be able to use a Maildir++ just like a regular
   Maildir.  Of course, a plain Maildir client won't be able
   to enforce a quota, and won't be able to access messages
   stored in folders.