[Dovecot] Eliminate legacy INBOX namespace - how?

[Timo Sirainen]

On 21.12.2013, at 17.49, Charles Marcus <CMarcus at Media-Brokers.com> wrote:

> Our mailstore was converted from a Courier-IMAP system last year, but I am planning a migration to a shiny new VM, and would really like to clean things up and do away with the legacy INBOX namespace.
> 
> My goal is to simplify IMAP client setup - no special 'INBOX' namespace needed, they just enter the server info and credentials.
> 
> Also important because I will be rolling out SOGo, which has a nice web interface, and I want the mailstore to be as close to default dovecot settings as possible - although I do plan on converting from maildir to mdbox when I do the conversion
> 
> I also don't want other folders to show up as subfolders of the Inbox in IMAP clients, they should all show up on the same level as the Inbox.
> 
> I've read http://wiki2.dovecot.org/Migration/Courier, but I don't see anything about how to eliminate this stupid legacy INBOX. namespace, so that new IMAP clients won't show all folders as subfolders of the INBOX unless/until they add the INBOX namespace prefix in the advanced settings.
> 
> I've also been reading http://wiki2.dovecot.org/Namespaces, but I'm still confused as to how to go about this.

I don't think it can be done easily with just a single config. Whatever you do to new users might break existing setups. So the only good way I think would be to use two different IPs. One for the new setups, one for the old. For example imap.domain.com -> mail.domain.com or vice versa.