managesieve -> «Unable to connect to server» - Users

5 Jun 2017 · */roundcube/config/config.inc.php*


      hello
I installed Roundcube and enabled managesieve in */roundcube/config/config.inc.php* with
// List of active plugins (in plugins/ directory)
    $config['plugins'] = array(
       'archive',
       'managesieve',
       'zipdownload',
    );
but the filters don't work, I get the message «Unable to connect to server» (see screenshot)
The sieve plugin seems to be installed in Dovecot, the partial output of *dovecot -n* is (see whole output at the end of this mail)
plugin {
  sieve = file:~/sieve;active=~/.dovecot.sieve
}


What am I missing?
Thank you and best regards
Meaulnes Legler
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ www.WaveWeb.ch ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ Zurich, Switzerland ~
~ tel: +41 44 2601660 ~
# Pigeonhole version 0.4.18 (29cc74d)
# OS: Linux 2.6.32-042stab120.19 x86_64 CentOS Linux release 7.3.1611 (Core)
auth_mechanisms = plain login
disable_plaintext_auth = no
listen = *
mail_location = mbox:~/mail/:INBOX=mbox
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
mbox_write_locks = fcntl
namespace inbox {
    inbox = yes
    location =
    mailbox Drafts {
      special_use = \Drafts
    }
    mailbox Junk {
      special_use = \Junk
    }
    mailbox Sent {
      special_use = \Sent
    }
    mailbox "Sent Messages" {
      special_use = \Sent
    }
    mailbox Trash {
      special_use = \Trash
    }
    prefix =
}
passdb {
    driver = pam
}
plugin {
    sieve = file:~/sieve;active=~/.dovecot.sieve
}
protocols = imap pop3
service imap-login {
    inet_listener imap {
      port = 143
    }
    inet_listener imaps {
      port = 993
      ssl = yes
    }
}
service pop3-login {
    inet_listener pop3 {
      port = 110
    }
    inet_listener pop3s {
      port = 995
      ssl = yes
    }
}
ssl_ca =