New maildir default permissions

[Jan Krcmar]

hi,

i'm trying to configure dovecot to create maildir directories of new
users with specific permissions. i'm ending with this

dovecot: auth: Debug: sql(blabla,::1,<HJ/.>): query: SELECT
data_user.username, data_user.password, 500 AS userdb_uid, 500 AS
userdb_gid, 500 as mail_access_groups, 750 as mode, '/var/mail/' AS
userdb_home, concat('maildir:/var/mail/', data_ldap.maildir) AS
userdb_mail, concat('*:bytes=', data_ldap.quota) AS userdb_quota_rule
FROM data_user LEFT JOIN data_ldap ON data_user.ldap_id=data_ldap.id
WHERE lower(username) = 'blabla' AND active=true
dovecot: auth: Debug: client passdb out:
OK#0111#011user=blabla#011mail_access_groups=500#011mode=750
dovecot: auth: Debug: master in: REQUEST#0111075576833#0115939#0111#.
dovecot: auth: Debug: prefetch(blabla,::1,<HJ/.>): success
dovecot: auth: Debug: master userdb out:
USER#0111075576833#011blabla#011uid=500#011gid=500#011home=/var/mail/#011mail=maildir:/var/mail/b/blabla#011quota_rule=*:bytes=100M
dovecot: imap-login: Login: user=<blabla>, method=PLAIN, rip=::1,
lip=::1, mpid=5940, secured, session=<HJ/.>
dovecot: imap: Debug: Loading modules from directory: /usr/lib/dovecot/modules
dovecot: imap: Debug: Module loaded:
/usr/lib/dovecot/modules/lib10_quota_plugin.so
dovecot: imap: Debug: Module loaded:
/usr/lib/dovecot/modules/lib11_imap_quota_plugin.so
dovecot: imap: Debug: Added userdb setting: mail=maildir:/var/mail/b/blabla
dovecot: imap: Debug: Added userdb setting: plugin/quota_rule=*:bytes=100M
dovecot: imap(blabla): Debug: Effective uid=500, gid=500, home=/var/mail/
dovecot: imap(blabla): Debug: Quota root: name=User quota backend=maildir args=
dovecot: imap(blabla): Debug: Quota rule: root=User quota mailbox=*
bytes=104857600 messages=0
dovecot: imap(blabla): Debug: Namespace inbox: type=private, prefix=,
sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes
location=maildir:/var/mail/b/blabla
dovecot: imap(blabla): Debug: maildir++: root=/var/mail/b/blabla,
index=, control=, inbox=/var/mail/b/blabla, alt=
dovecot: imap(blabla): Debug: Namespace : /var/mail/b/blabla doesn't
exist yet, using default permissions
dovecot: imap(blabla): Debug: Namespace : Using permissions from
/var/mail/b/blabla: mode=0700 gid=-1

could anyone tell me, how to set the default permissions? it uses
mode=700, and i need mode=750 instead

i'm using dovecot 2.1.17

thanks
fous