Marking this issue as solved. Solution is below.
Matthias
On 08/03/2014 08:01 PM, Dr. Matthias Sitte wrote:
> Ok, just googled some more and came across this post [1]. It's basically
> a very similar to mine, and describes the same problem that INBOX has no
> subfolders. So, I've logged in with
Le 15 août 2014 à 14:24, Joseph Malloy a écrit :
> Hello,
>
> [...]
>
> Aug 15 13:20:09 Server dovecot: auth: Warning: sql: Ignoring changed
> iterate_query in /etc/dovecot/dovecot-sql.conf.ext, because userdb sql not
> used. (If this is intentional, set userdb_warning_disable=yes)
>
> [...