IMAP: don't include mailbox under the virtual namespace in LIST responses.

Clients now have to use the NAMESPACE extension [RFC 2342] to discover
mailboxes under the “virtual/” namespace.  (Plus an extra LIST command,
causing an overhead two roundtrips.)  Of course the downside is that non
namespace-aware clients lose access to the “virtual/{all,flagged,…}”
mailboxes, but on second thought it's probably better this way rather
than having such clients treat these mailboxes as regular mailboxes.

2 files changed, 2 insertions, 1 deletions

diff --git a/roles/IMAP/files/etc/dovecot/conf.d/10-mail.conf b/roles/IMAP/files/etc/dovecot/conf.d/10-mail.conf
index cd59ebf..ef76a8d 100644
--- a/roles/IMAP/files/etc/dovecot/conf.d/10-mail.conf
+++ b/roles/IMAP/files/etc/dovecot/conf.d/10-mail.conf
@@ -64,41 +64,41 @@ namespace inbox {
   # extension. You'll most likely also want to set list=no. This is mostly
   # useful when converting from another server with different namespaces which
   # you want to deprecate but still keep working. For example you can create
   # hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/".
   #hidden = no
 
   # Show the mailboxes under this namespace with LIST command. This makes the
   # namespace visible for clients that don't support NAMESPACE extension.
   # "children" value lists child mailboxes, but hides the namespace prefix.
   #list = yes
 
   # Namespace handles its own subscriptions. If set to "no", the parent
   # namespace handles them (empty prefix should always have this as "yes")
   #subscriptions = yes
 }
 
 namespace virtual {
   prefix = virtual/
   separator = /
   location = virtual:/etc/dovecot/virtual:INDEX=MEMORY
-  list = yes
+  list = no
   hidden = no
   subscriptions = no
 }
 
 # Example shared namespace configuration
 #namespace {
   #type = shared
   #separator = /
 
   # Mailboxes are visible under "shared/user@domain/"
   # %%n, %%d and %%u are expanded to the destination user.
   #prefix = shared/%%u/
 
   # Mail location for other users' mailboxes. Note that %variables and ~/
   # expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the
   # destination user's data.
   #location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u
 
   # Use the default namespace for saving subscriptions.
   #subscriptions = no
diff --git a/roles/webmail/tasks/roundcube.yml b/roles/webmail/tasks/roundcube.yml
index 24f8fa7..41ef907 100644
--- a/roles/webmail/tasks/roundcube.yml
+++ b/roles/webmail/tasks/roundcube.yml
@@ -37,40 +37,41 @@
     - classic
     - larry
 
 - name: Configure Roundcube
   lineinfile: dest=/etc/roundcube/config.inc.php
               regexp='^\\s*\\$config\\[\'{{ item.var }}\'\\]\\s*='
               line='$config[\'{{ item.var }}\'] = {{ item.value }};'
               owner=root group=www-data
               mode=0640
   with_items:
     # Logging/Debugging
     - { var: smtp_log,               value: "false" }
     # IMAP
     #   WARNING: After hostname change update of mail_host column in users
     #   table is required to match old user data records with the new host.
     - { var: default_host,           value: "'{{ ipsec[imapsvr.inventory_hostname_short] }}'" }
     - { var: default_port,           value: "143"                                             }
     - { var: imap_auth_type,         value: "'PLAIN'"                                         }
     - { var: imap_cache,             value: "null"                                            }
     - { var: imap_timeout,           value: "180"                                             }
+    - { var: imap_force_ns,          value: "true"                                            }
     - { var: messages_cache,         value: "false"                                           }
     # SMTP
     - { var: smtp_server,            value: "'localhost'" }
     - { var: smtp_port,              value: "2525"        }
     # System
     - { var: force_https,            value: "true"                       }
     - { var: login_autocomplete,     value: "2"                          }
     - { var: skin_logo,              value: "'/images/fripost_logo.png'" }
     - { var: username_domain,        value: "'fripost.org'"              }
     - { var: product_name,           value: "'Fripost Webmail'"          }
     # Plugins
     - { var: plugins,                value: "array('archive','additional_message_headers','managesieve','password')" }
     # Spell Checking
     - { var: enable_spellcheck,      value: "'true'"                                    }
     - { var: spellcheck_engine,      value: "'enchant'"                                 }
     - { var: spellcheck_languages,   value: "array('da','de','en','es','fr','no','sv')" }
     # User Interface
     - { var: skin,                   value: "'larry'"                        }
     - { var: language,               value: "'sv_SE'"                        }
     - { var: create_default_folders, value: "true"                           }