Problem with shared Mailbox

[Asterisk]

Hi
I am using dovecot 2.3.4.1, is working in thunderbird, but it does not work
in outlook 2016 or mail.

a list "" "*"
* LIST (\HasNoChildren \UnMarked \Drafts) "/" Drafts
* LIST (\HasNoChildren \UnMarked \Sent) "/" Sent
* LIST (\HasNoChildren \Junk) "/" Junk
* LIST (\HasNoChildren \Trash) "/" Trash
* LIST (\Noselect \HasChildren) "/" partage
* LIST (\HasNoChildren) "/" partage/sysadmin
* LIST (\HasNoChildren) "/" INBOX


here the configuration

auth_mechanisms = plain login
auth_verbose = yes
auth_verbose_passwords = sha1:6
hostname =
imap_idle_notify_interval = 29 mins
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
mail_gid = docker
mail_location = maildir:/var/mail/%n
mail_plugins = acl  quota
mail_privileged_group = docker
mail_uid = docker
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date index ihave
duplicate mime foreverypart extracttext imapflags notify vnd.dovecot.pipe
vnd.dovecot.filter
namespace {
  disabled = no
  hidden = no
  list = children
  location =
maildir:/var/mail/%%n:INDEX=/var/mail/%%n:INDEXPVT=/var/mail/%%n
  prefix = partage/%%n/
  separator = /
  subscriptions = yes
  type = shared
}
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
  separator = /
  subscriptions = yes
  type = private
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
plugin {
  acl = vfile
  acl_shared_dict = file:/var/mail/%d/shared-mailboxes.db
  quota_warning = storage=95%% quota-warning 95 %u
  quota_warning2 = storage=80%% quota-warning 80 %u
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +notify +imapflags +vnd.dovecot.pipe
+vnd.dovecot.filter
  sieve_filter_bin_dir = /usr/lib/dovecot/sieve-filter
  sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe
  sieve_plugins = sieve_extprograms
}
postmaster_address = postmaster@
protocols = " imap lmtp sieve"
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = docker
    mode = 0666
    user = docker
  }
  unix_listener auth-master {
    group = docker
    mode = 0600
    user = docker
  }
  unix_listener auth-userdb {
    group = docker
    mode = 0666
    user = docker
  }
}
service imap-login {
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}
service lmtp {
  unix_listener lmtp {
    group = postfix
    mode = 0660
  }
}
service pop3-login {
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
}
ssl = required
ssl_cert = </etc/letsencrypt/live//fullchain.pem
ssl_cipher_list =
ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
ssl_min_protocol = TLSv1.2
ssl_prefer_server_ciphers = yes
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocol lmtp {
  mail_plugins = acl  quota sieve
}
protocol lda {
  mail_plugins = acl  quota sieve
}
protocol imap {
  mail_plugins = acl  quota imap_acl imap_quota
}
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