[Dovecot] IMAP Dovecot unknown namespace creating root folders

[Marcus Lively]

Hi all,
I believe I have worked this out, there is an entry in dovecot.conf for the
private namespace which sets the prefix required to access the namespace as
follows

prefix = INBOX.

I commented this out and restarted dovecot. 

I know that I need to make this change in the template for dovecot as the
direct edit of dovecot.conf will be overwritten when dovecot is updated. 
I am also checking if there are any implications in doing this, If anyone
knows any please drop me a reply.

Many thanks

Marcus

> -----Original Message-----
> From: dovecot-bounces at dovecot.org [mailto:dovecot-bounces at dovecot.org]
> On Behalf Of marcus lively
> Sent: 30 October 2013 03:08
> To: dovecot at dovecot.org
> Subject: [Dovecot] IMAP Dovecot unknown namespace creating root folders
> 
> Hi, I hope someone can point me in the right direction here. I am
> migrating a mailbox from a non cPanel server, and the mailboxes have
> folders which seem to be at the same level as the Inbox. The users
> access these mailboxes using IMAP.
> 
> The new server configuration is Exim > Dovecot 1.2.17 > Maildir with
> the standard cPanel install settings. dovecot -n output below
> 
> I have created the new mailbox within cPanel however when I try to
> create a 'top level' folder in Outlook I receive the error 'Cannot
> create the folder: Unknown namespace' (Note I also tried this with the
> windows mail client to ensure it was not client side)
> 
> I know that I can get round this by setting the root folder path on the
> client to 'Inbox' and therefore the folders would be created as sub-
> folders of Inbox, and this would not be visible to the user, but I was
> hoping to migrate without touching the clients.
> 
> Should dovecot report the default root folder path automatically, or
> create a default top level namespace for each user so this can be done,
> or could I have just gone wrong and missed something.
> 
> Any advice on getting this working appreciated, thanks for any help
> 
> Maspry
> 
> # 1.2.17: /etc/dovecot.conf
> # OS: Linux 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.4 (Final)
> protocols: imap imaps pop3 pop3s
> ssl_cert_file: /etc/dovecot/ssl/dovecot.crt
> ssl_key_file: /etc/dovecot/ssl/dovecot.key
> ssl_cipher_list: ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:-LOW:-SSLv2:-EXP
> disable_plaintext_auth: no
> login_dir: /var/run/dovecot/login
> login_executable(default): /usr/libexec/dovecot/imap-login
> login_executable(imap): /usr/libexec/dovecot/imap-login
> login_executable(pop3): /usr/libexec/dovecot/pop3-login
> login_process_per_connection: no
> login_processes_count: 2
> login_max_processes_count: 50
> login_max_connections: 500
> mail_max_userip_connections(default): 20
> mail_max_userip_connections(imap): 20
> mail_max_userip_connections(pop3): 3
> maildir_copy_preserve_filename: yes
> mail_executable(default): /usr/libexec/dovecot/imap
> mail_executable(imap): /usr/libexec/dovecot/imap
> mail_executable(pop3): /usr/libexec/dovecot/pop3
> mail_plugins(default): acl quota imap_quota
> mail_plugins(imap): acl quota imap_quota
> mail_plugins(pop3): quota
> mail_plugin_dir(default): /usr/lib64/dovecot/imap
> mail_plugin_dir(imap): /usr/lib64/dovecot/imap
> mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3
> pop3_uidl_format(default): %08Xu%08Xv
> pop3_uidl_format(imap): %08Xu%08Xv
> pop3_uidl_format(pop3): UID%u-%v
> pop3_logout_format(default): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
> pop3_logout_format(imap): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
> pop3_logout_format(pop3): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s,
> bytes=%i/%o
> namespace:
>   type: private
>   prefix: INBOX.
>   inbox: yes
>   list: yes
>   subscriptions: yes
> lda:
>   postmaster_address: postmaster at example.com auth default:
>   mechanisms: plain login
>   cache_size: 1024
>   username_chars:
> abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!#$-
> =?^_{}~./@+%
>   passdb:
>     driver: checkpassword
>     args: /usr/local/cpanel/bin/dovecot-auth
>   userdb:
>     driver: prefetch
>   socket:
>     type: listen
>     client:
>       path: /var/run/dovecot/auth-client
>       mode: 438
> plugin:
>   quota: maildir
>   quota_rule: Trash:ignore
>   acl: vfile