[Dovecot] create Sub-Subfolders

[John S]

  On 8/9/2010 11:21 AM, Timo Sirainen wrote:
> On Mon, 2010-08-09 at 17:02 +0200, Richard Gliebe wrote:
>
>> when a user tries to create a sub-subfolder in Archiv, he gets the message:
>>
>> "Mailbox doesn't allow inferior mailboxes"
> Like Phill said, the problem is mbox format. If you don't want to switch
> away from it, you can still create Archiv/stuff, if you just don't first
> create Archiv as a mailbox. In IMAP protocol terms you need to:
>
> Create Archiv/ directory to filesystem:
> 1 CREATE Archiv/
> Create the mailbox file:
> 2 CREATE Archiv/child
>
> The 1 step is actually optional. In any case you can probably do both in
> the client UI as well by just adding the '/' manually.
>
You can also create namespaces, making your inbox an mbox and the rest 
of the folders Maildir.

Mixed mbox and Maildir

If you have your INBOX as mbox in /var/mail/username and the rest of the 
mailboxes in Maildir format under ~/Maildir, you can do this by creating 
two namespaces:

namespace private {
   separator = /
   prefix = "#mbox/"
   location = mbox:~/mail:INBOX=/var/mail/%u
   inbox = yes
   hidden = yes
   list = no   # for v1.1+
}
namespace private {
   separator = /
   prefix =
   location = maildir:~/Maildir
}