How to disable the managesieve plugin?

Question

How to disable the managesieve plugin?

Answer

The plugin needs to be removed from the list of active plugins enabled in Roundcube. The default list of enabled plugins is here:

CONFIG_TEXT: $mandatory_plugins = ['cpanellogin','cpanellogout','archive','calendar','return_to_webmail','markasjunk','cpanelchecks','cpanelicsimport','cpanelvcfimport', 'managesieve'];

1. Access your server via SSH as the root user and create a custom include file with the instructions here:
   How to edit the Roundcube configuration file

2. Using your preferred text editor, add the following data to the new custom include file, customizing the list of plugins to those you wish to disable. Lines beginning with \\ are comments, and are not included when reading the configuration:

   CONFIG_TEXT: <?php
   // List any plugins here that you want to forcefully disable
   $disabled_plugins = [
       'managesieve',
       // 'calendar',
       // 'archive',
   ];
   
   $config['plugins'] = array_diff($config['plugins'], $disabled_plugins);

3. Save the include file.