dovecot - Nov 2011 - IMP, Dovecot and multiple namespaces

Hey guys,

I'm wondering what the best way is to be backwards compatible with  
Courier mailbox formats and not duplicate mailbox trees with Dovecot.   
Is anyone doing this right now?

My Dovecot 2.0.13 is configured as follows for Namespaces:

namespace {
   inbox = yes
   location    prefix    separator = .
}
namespace {
   hidden = yes
   inbox = no
   list = no
   location    prefix = INBOX.
   separator = .
}

So I should have an INBOX, plus additional root folders - rather than  
the Courier default of all folders being subfolders of the INBOX.

So when I run LIST in IMAP I get -
08 LIST "" %
* LIST (\HasChildren) "." "INBOX"
* LIST (\HasChildren) "." "Spam"
* LIST (\HasNoChildren) "." "Sent"
* LIST (\HasNoChildren) "." "Trash"
* LIST (\HasNoChildren) "." "Junk"
* LIST (\HasNoChildren) "." "Drafts"

Which looks fine.

The problem is, IMP (old and new) show two sets of mailboxes (one for  
each namespace) like so:

INBOX
Spam
Spam.Over10
Sent
INBOX.Spam
INBOX.Spam.Over10
INBOX.Sent
(etc)

I assume IMP is walking the INBOX because it says it has Children, and  
displaying those Children - The Horde team is telling me that's the  
root of the problem.  It makes sense, but I'm not sure what the real  
solution is.

Is it possible to disable Children for a mailbox when an alternate  
hidden namespace matches the mailbox name?  Does that make sense?
Or, is there another option I change change in the dovecot config to  
accomplish the same?

Rick

On Wed, 2011-11-02 at 09:37 -0500, Rick Romero wrote:
> Hey guys,
> 
> I'm wondering what the best way is to be backwards compatible with  
> Courier mailbox formats and not duplicate mailbox trees with Dovecot.   
> Is anyone doing this right now?
> 
> My Dovecot 2.0.13 is configured as follows for Namespaces:
> 
> namespace {
>    inbox = yes
>    location >    prefix >    separator = .
Perhaps use '/' separator.
> }
> namespace {
>    hidden = yes
>    inbox = no
>    list = no
>    location >    prefix = INBOX.
>    separator = .
Add "alias_for = " here. I also added it to wiki2.
> }
> 
> So I should have an INBOX, plus additional root folders - rather than  
> the Courier default of all folders being subfolders of the INBOX.
> 
> So when I run LIST in IMAP I get -
> 08 LIST "" %
> * LIST (\HasChildren) "." "INBOX"
INBOX.% now matches both INBOX. namespace's mailboxes, and also the
INBOX mailbox's children. If you change the separator to '/',
there's a
difference between INBOX.% (compatibility namespace) and INBOX/%
(INBOX's children).