dovecot & iOS

[Dirk Laurenz]

Hello List,

i have a working dovecot imap service running with multiple clients 
running fine, even iOS.
What's anying is, that only on iOS (   ) i see a huge bunch of .CONTROL 
directories - marked grey.
It seems to be a copy of the existing folder structure. I don't see this 
on thunderbird, outlook or even roundcube.

Is there any chance to configure dovecot to hide those folders to iOS?

Here's some extended Information....

Attached: Screenshot from iOS, where you can see, what i mean

dovecot Version:     2.1.7

root at mail01:~# dovecot -n
# 2.1.7: /etc/dovecot/dovecot.conf
# OS: Linux 4.9.14+ armv6l Debian 7.11
lda_mailbox_autocreate = yes
listen = *
mail_location = 
maildir:~/Maildir:INBOX=~/Maildir/Inbox:LAYOUT=fs:CONTROL=~/Maildir/.CONTROL:INDEX=~/Maildir/.INDEX
namespace {
   inbox = yes
   location =
   mailbox {
     special_use = \Drafts
     name = Drafts
   }
   mailbox {
     special_use = \Junk
     name = Junk
   }
   mailbox {
     special_use = \Sent
     name = Sent
   }
   mailbox {
     special_use = \Sent
     name = Sent Messages
   }
   mailbox {
     special_use = \Trash
     name = Trash
   }
   prefix =
   name = inbox
}
passdb {
   driver = pam
}
plugin {
   antispam_debug_target = syslog
   antispam_signature = X-DSPAM-Signature
   antispam_spam = SPAM
   antispam_verbose_debug = 1
}
postmaster_address = postmaster at domain
protocols = " imap"
service replication-notify-fifo {
   name = aggregator
}
service anvil-auth-penalty {
   name = anvil
}
service auth-worker {
   name = auth-worker
}
service auth-client {
   name = auth
}
service config {
   name = config
}
service dict {
   name = dict
}
service login/proxy-notify {
   name = director
}
service dns-client {
   name = dns_client
}
service doveadm-server {
   name = doveadm
}
service imap {
   name = imap-login
}
service login/imap {
   name = imap
}
service indexer-worker {
   name = indexer-worker
}
service indexer {
   name = indexer
}
service ipc {
   name = ipc
}
service lmtp {
   name = lmtp
}
service log-errors {
   name = log
}
service pop3 {
   name = pop3-login
}
service login/pop3 {
   name = pop3
}
service replicator {
   name = replicator
}
service login/ssl-params {
   name = ssl-params
}
service stats-mail {
   name = stats
}
ssl_cert = </etc/dovecot/fullchain.pem
ssl_key = </etc/dovecot/private/privkey.pem
userdb {
   driver = passwd
}
protocol lmtp {
   service replication-notify-fifo {
     name = aggregator
   }
   service anvil-auth-penalty {
     name = anvil
   }
   service auth-worker {
     name = auth-worker
   }
   service auth-client {
     name = auth
   }
   service config {
     name = config
   }
   service dict {
     name = dict
   }
   service login/proxy-notify {
     name = director
   }
   service dns-client {
     name = dns_client
   }
   service doveadm-server {
     name = doveadm
   }
   service imap {
     name = imap-login
   }
   service login/imap {
     name = imap
   }
   service indexer-worker {
     name = indexer-worker
   }
   service indexer {
     name = indexer
   }
   service ipc {
     name = ipc
   }
   service lmtp {
     name = lmtp
   }
   service log-errors {
     name = log
   }
   service pop3 {
     name = pop3-login
   }
   service login/pop3 {
     name = pop3
   }
   service replicator {
     name = replicator
   }
   service login/ssl-params {
     name = ssl-params
   }
   service stats-mail {
     name = stats
   }
}
protocol lda {
   info_log_path = /var/log/dovecot-lda.log
   log_path = /var/log/dovecot-lda.log
   service replication-notify-fifo {
     name = aggregator
   }
   service anvil-auth-penalty {
     name = anvil
   }
   service auth-worker {
     name = auth-worker
   }
   service auth-client {
     name = auth
   }
   service config {
     name = config
   }
   service dict {
     name = dict
   }
   service login/proxy-notify {
     name = director
   }
   service dns-client {
     name = dns_client
   }
   service doveadm-server {
     name = doveadm
   }
   service imap {
     name = imap-login
   }
   service login/imap {
     name = imap
   }
   service indexer-worker {
     name = indexer-worker
   }
   service indexer {
     name = indexer
   }
   service ipc {
     name = ipc
   }
   service lmtp {
     name = lmtp
   }
   service log-errors {
     name = log
   }
   service pop3 {
     name = pop3-login
   }
   service login/pop3 {
     name = pop3
   }
   service replicator {
     name = replicator
   }
   service login/ssl-params {
     name = ssl-params
   }
   service stats-mail {
     name = stats
   }
}
protocol imap {
   mail_plugins = antispam
   service replication-notify-fifo {
     name = aggregator
   }
   service anvil-auth-penalty {
     name = anvil
   }
   service auth-worker {
     name = auth-worker
   }
   service auth-client {
     name = auth
   }
   service config {
     name = config
   }
   service dict {
     name = dict
   }
   service login/proxy-notify {
     name = director
   }
   service dns-client {
     name = dns_client
   }
   service doveadm-server {
     name = doveadm
   }
   service imap {
     name = imap-login
   }
   service login/imap {
     name = imap
   }
   service indexer-worker {
     name = indexer-worker
   }
   service indexer {
     name = indexer
   }
   service ipc {
     name = ipc
   }
   service lmtp {
     name = lmtp
   }
   service log-errors {
     name = log
   }
   service pop3 {
     name = pop3-login
   }
   service login/pop3 {
     name = pop3
   }
   service replicator {
     name = replicator
   }
   service login/ssl-params {
     name = ssl-params
   }
   service stats-mail {
     name = stats
   }
}


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