Re: Shared mailboxes not shown or accessible

[Tim ODriscoll]

On Sat, 17 Jan 2015, Tim ODriscoll wrote:
I've gone through all the documentation I can find but still can't  
sort this out. Any help would be greatly appreciated.


Obviously not *all* the documentation because I've recently found a  
piece about file/group/g+s permissions and that seems to have solved it.


Tim

Shared mailboxes not shown or accessible

[Tim ODriscoll]

Dear All,

I'm trying (and failing) to implement a shared mailbox folder. My goal  
is to share the inbox of a user 'invoices' to a test user 'rubbish'.  
My ACLs appear to be correct:

# doveadm acl get -u invoices inbox
ID Global Rights
user=rubbish  create delete expunge insert lookup post  
read write write-deleted write-seen


The shared-dict is being generated:
# cat /var/lib/dovecot/db/shared-mailboxes
shared/shared-boxes/user/rubbish/invoices
1

Yet when I try to list the mailboxes, the shared namespace has no children:
. login rubbish password
. OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE  
IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS  
THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT  
CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC  
ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE  
BINARY MOVE QUOTA ACL RIGHTS=texk] Logged in

. list  *
* LIST (\HasNoChildren \Trash) / Trash
* LIST (\HasNoChildren \Drafts) / Drafts
* LIST (\HasNoChildren \Sent) / Sent
* LIST (\Noselect \HasNoChildren) / shared
* LIST (\HasNoChildren) / INBOX
. OK List completed.

I've gone through all the documentation I can find but still can't  
sort this out. Any help would be greatly appreciated.


Tim
My dovecot config:
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.13.0-32-generic x86_64 Ubuntu 14.04 LTS xfs
auth_mechanisms = plain login
auth_username_format = %Ln
default_vsz_limit = 384 M
disable_plaintext_auth = no
listen = *
mail_access_groups = mail
mail_location =  
maildir:/home/email/LHNET/%Lu/Maildir:INBOX=/home/email/LHNET/%Lu/Maildir

mail_plugins = acl
namespace {
   list = yes
   location =  
maildir:/home/email/LHNET/%%Lu/Maildir:INDEXPVT=/home/email/LHNET/%Lu/Maildir/shared/%%Lu:CONTROL=/home/email/LHNET/%Lu/Maildir/shared/%%Lu

   prefix = shared/%%u/
   separator = /
   subscriptions = no
   type = shared
}
namespace inbox {
   inbox = yes
   location =
   mailbox Drafts {
 auto = subscribe
 special_use = \Drafts
   }
   mailbox Junk {
 special_use = \Junk
   }
   mailbox Sent {
 auto = subscribe
 special_use = \Sent
   }
   mailbox Sent Messages {
 special_use = \Sent
   }
   mailbox Trash {
 auto = subscribe
 special_use = \Trash
   }
   prefix =
   separator = /
   type = private
}
passdb {
   args = /etc/dovecot/dovecot-ldap.conf.ext
   driver = ldap
}
plugin {
   acl = vfile:/etc/dovecot/global-acls:cache_secs=300
   acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes
   quota = maildir:User quota
   quota_grace = 10%%
   quota_rule = *:storage=3G
   quota_warning = storage=95%% quota-warning 95 %u
   quota_warning2 = storage=80%% quota-warning 80 %u
   sieve = ~/.dovecot.sieve
   sieve_dir = ~/sieve
}
protocols =  imap
service auth {
   unix_listener /var/spool/postfix/private/auth {
 group = mail
 mode = 0666
 user = postfix
   }
   unix_listener auth-userdb {
 group = mail
 mode = 0640
 user = vmail
   }
}
service imap-login {
   inet_listener imap {
 address = *
 port = 143
   }
   inet_listener imaps {
 address = *
 port = 993
 ssl = yes
   }
}
service imap {
   process_limit = 1024
   vsz_limit = 384 M
}
ssl_cert = /etc/ssl/certs/dovecot.pem
ssl_key = /etc/ssl/private/dovecot.pem
userdb {
   args = /etc/dovecot/dovecot-ldap.conf.ext
   driver = ldap
}
protocol lda {
   mail_plugins = sieve acl quota
   postmaster_address = postmas...@lambrookschool.co.uk
}
protocol imap {
   mail_plugins = acl acl imap_acl quota imap_quota
}