Article ID: 127366, created on Nov 9, 2015, last review on May 23, 2016

  • Applies to:
  • Plesk Automation 11.5

Symptoms

The following error displays when attempting to configure filters in Roubcube webmail:

Unable to connect to Sieve server. 

screenshot

Cause

The behavior was caused by software issue #PPA-2611 "Filters based on SieveRules plugin in Roundcube settings are not working".

The fix is considered to be included in one of the next PA updates.

Please use provided ID to track maintenance in Plesk Automation release notes.

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Workaround

To disable SieveRules plugin:

  1. Backup the original Roundcube configuration file on Webmail Service node:

    cp /usr/share/psa-roundcube/config/main.inc.php{,.backup}
    
  2. Open the file and remove sieverules from settings of $rcmail_config parameter:

    // ----------------------------------
    // PLUGINS
    // ----------------------------------
    
    // List of active plugins (in plugins/ directory)
    $rcmail_config['plugins'] = array('password', 'markasjunk2', 'sieverules');
    

    So that it looks as below:

    $rcmail_config['plugins'] = array('password', 'markasjunk2');
    

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