diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
index 7fc719874..77645856b 100644
--- a/app/mailers/application_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -5,8 +5,6 @@ class ApplicationMailer < ActionMailer::Base
   default from: "#{APPLICATION_NAME} <#{CONTACT_EMAIL}>"
   layout 'mailer'
 
-  before_action :add_dolist_header
-
   # Attach the procedure logo to the email (if any).
   # Returns the attachment url.
   def attach_logo(procedure)
diff --git a/app/mailers/concerns/mailer_monitoring_concern.rb b/app/mailers/concerns/mailer_monitoring_concern.rb
index 8dfd84179..398ac79d5 100644
--- a/app/mailers/concerns/mailer_monitoring_concern.rb
+++ b/app/mailers/concerns/mailer_monitoring_concern.rb
@@ -2,6 +2,8 @@ module MailerMonitoringConcern
   extend ActiveSupport::Concern
 
   included do
+    before_action :add_dolist_header
+
     # Don’t retry to send a message if the server rejects the recipient address
     rescue_from Net::SMTPSyntaxError do |_exception|
       message.perform_deliveries = false