[horde] H6 Ingo Authentication error

[horst.simon2 at icloud.com]

Hi,
I am trying to create Ingo filter rules, but getting authentication errors when saving the rule and when enabling the whitelist it crashes with following error
A fatal error has occurred

Error reading data from socket

in /opt/local/www/apache2/horde/vendor/horde/socket_client/lib/Horde/Socket/Client.php:207
 1. require_once() /opt/local/www/apache2/horde/web/ingo/basic.php:3
 2. Ingo_Basic_Base->__construct() /opt/local/www/apache2/horde/vendor/horde/ingo/basic.php:31
 3. Ingo_Basic_Whitelist->_init() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Basic/Base.php:49
 4. Ingo_Factory_Script->activateAll() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Basic/Whitelist.php:47
 5. Ingo_Script_Base->activate() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Factory/Script.php:200
 6. Ingo_Transport_Timsieved->setScriptActive() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Script/Base.php:407
 7. Ingo_Transport_Timsieved->_connect() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Transport/Timsieved.php:106
 8. Horde\ManageSieve\Client->__construct() /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Transport/Timsieved.php:77
 9. Horde\ManageSieve\Client->_handleConnectAndLogin() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:220
10. Horde\ManageSieve\Client->login() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:248
11. Horde\ManageSieve\Client->_cmdAuthenticate() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:397
12. Horde\ManageSieve\Client->_doCmd() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:622
13. Horde\ManageSieve\Client->_recvLn() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:987
14. Horde\Socket\Client->gets() /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php:940

Details

The full error message is logged in Horde's log file, and is shown below only to administrators. Non-administrative users will not see error details.

Horde\Socket\Client\Exception Object
(
    [message:protected] => Error reading data from socket
    [string:Exception:private] => 
    [code:protected] => 0
    [file:protected] => /opt/local/www/apache2/horde/vendor/horde/socket_client/lib/Horde/Socket/Client.php
    [line:protected] => 207
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 940
                    [function] => gets
                    [class] => Horde\Socket\Client
                    [type] => ->
                )

            [1] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 987
                    [function] => _recvLn
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [2] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 622
                    [function] => _doCmd
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [3] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 397
                    [function] => _cmdAuthenticate
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [4] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 248
                    [function] => login
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [5] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/managesieve/src/Client.php
                    [line] => 220
                    [function] => _handleConnectAndLogin
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [6] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Transport/Timsieved.php
                    [line] => 77
                    [function] => __construct
                    [class] => Horde\ManageSieve\Client
                    [type] => ->
                )

            [7] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Transport/Timsieved.php
                    [line] => 106
                    [function] => _connect
                    [class] => Ingo_Transport_Timsieved
                    [type] => ->
                )

            [8] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Script/Base.php
                    [line] => 407
                    [function] => setScriptActive
                    [class] => Ingo_Transport_Timsieved
                    [type] => ->
                )

            [9] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Factory/Script.php
                    [line] => 200
                    [function] => activate
                    [class] => Ingo_Script_Base
                    [type] => ->
                )

            [10] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Basic/Whitelist.php
                    [line] => 47
                    [function] => activateAll
                    [class] => Ingo_Factory_Script
                    [type] => ->
                )

            [11] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/lib/Basic/Base.php
                    [line] => 49
                    [function] => _init
                    [class] => Ingo_Basic_Whitelist
                    [type] => ->
                )

            [12] => Array
                (
                    [file] => /opt/local/www/apache2/horde/vendor/horde/ingo/basic.php
                    [line] => 31
                    [function] => __construct
                    [class] => Ingo_Basic_Base
                    [type] => ->
                )

            [13] => Array
                (
                    [file] => /opt/local/www/apache2/horde/web/ingo/basic.php
                    [line] => 3
                    [args] => Array
                        (
                            [0] => /opt/local/www/apache2/horde/vendor/horde/ingo/basic.php
                        )

                    [function] => require_once
                )

        )

    [previous:Exception:private] => 
    [logged] => 1
    [extraDetails:protected] => 
    [isLogged:Horde\Exception\HordeException:private] => 
    [_logLevel:protected] => 0
)