Running a dovecot IMAPS server

[Timothy Murphy]

Mark Knoop wrote:

> Actually, the *correct* way to use Maildir with procmail is just to have
> a trailing slash on the foldername, e.g.:
> 
> # fedora-list
> :0
> * ^X-BeenThere.*fedora-list at redhat.com
> .INBOX.lists.fedora/
> 
> The trailing slash tells procmail that it's delivering to a Maildir and
> it will put the message in 'new/'. That way you don't need to use a
> lockfile.

But where in the dovecot documentation does it say that you should do this?
What does .INBOX mean?