public String purgeUserInfoDay;

    /** The purge by bots setting. */
    public String purgeByBots;

    /** The notification recipient setting. */
    @Required
    @Size(max = 1000)
    public String notificationTo;

    /** The suggest search log setting. */
    public String suggestSearchLog;

    /** The suggest documents setting. */
    public String suggestDocuments;

    /**
     * Email addresses to receive system notifications.
     * Multiple addresses can be specified, separated by commas.
     */
    @Size(max = 1000)
    public String notificationTo;

    /**
     * Enable or disable search suggestions based on search logs.
     * When enabled, suggestions are generated from previous searches.
     */
    @Size(max = 10)