Fixed issue #1457: Comprehensive LDAP settings are to big for the DelayedJobs database table.

app/controllers/concerns/integration/import_job_base.rb

@@ -30,15 +30,19 @@ module Integration::ImportJobBase
   end
 
   def payload_dry_run
-    params
+    clean_payload(params.permit!.to_h)
   end
 
   def payload_import
-    import_setting
+    clean_payload(import_setting)
   end
 
   private
 
+  def clean_payload(payload)
+    payload.except(:wizardData, :action, :controller)
+  end
+
   def answer_with
     result = yield
     render json: result.merge(result: 'ok')

app/controllers/integration/exchange_controller.rb

@@ -59,7 +59,7 @@ class Integration::ExchangeController < ApplicationController
   # currently a workaround till LDAP is migrated to Sequencer
   def payload_dry_run
     {
-      ews_attributes: params[:attributes],
+      ews_attributes: params[:attributes].permit!.to_h,
       ews_folder_ids: params[:folders],
       ews_config:     {
         endpoint: params[:endpoint],