doveadm quota error output in some cases

[Kai Schaetzl]

I changed this now to a more standard setup using a mysql passdb/userdb 
for virtual users and a passwordfile auth (auth-passwordfile.ext) as 
described in doc/wiki/AuthDatabase.PasswdFile.txt for a few other users.

I'm still getting the same errors concerning dict access when running 
doveadmin quota. It doesn't help if I provide extra fields 
userdb_quota_rule with a storage=0 (unlimited quota).

doveadm quota get -A
doveadm(user): Error: Failed to get quota resource STORAGE: quota-dict: 
dict_lookup(priv/quota/storage) failed: net_connect_unix
(/var/run/dovecot/dict) failed: Permission denied (euid=500(user) 
egid=501(group) missing +r perm: /var/run/dovecot/dict, dir owned by 0:0 
mode=0755) (reply took 0.000 secs (0.000 in dict wait, 0.000 in other 
ioloops, 0.000 in locks))

What is the recomnmended way to fix this?

Thanks,

Kai