[Dovecot] Both mbox and Maildir

[Yann Rouillard]

Hi,

I would like to know if it's possible to configure dovecot so that it 
use mbox file format for the INBOX mailbox but Maildir format for all 
the subfolders.

My problem is I would like an IMAP server which allow to easily create 
folders and subfolders of folders, but at the same time I don't want to 
break all MUA which rely on /var/mail/johndoe in mbox format.

Thanks in advance.

Yann