diff --git a/config/locales/en.yml b/config/locales/en.yml
index f2c40c8f7..c1bcac742 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -36,16 +36,6 @@ en:
       first: First
       truncate: '…'
 
-  # mail:
-  #   administration:
-  #     dossier_expiration_summary:
-  #       expired_dossiers:
-  #         one: "Un dossier a passé sa date limite de conservation"
-  #         other: "%{count} dossiers ont passé leur date limite de conservation"
-  #       expiring_dossiers:
-  #         one: "Un dossier est sur le point de passer sa date limite de conservation"
-  #         other: "%{count} dossiers sont sur le point de passer leur date limite de conservation"
-
   modal:
     publish:
       title:
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 4d7247cfb..5409206ad 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -36,16 +36,6 @@ fr:
       first: Premier
       truncate: '…'
 
-  mail:
-    administration:
-      dossier_expiration_summary:
-        expired_dossiers:
-          one: "Un dossier a passé sa date limite de conservation"
-          other: "%{count} dossiers ont passé leur date limite de conservation"
-        expiring_dossiers:
-          one: "Un dossier est sur le point de passer sa date limite de conservation"
-          other: "%{count} dossiers sont sur le point de passer leur date limite de conservation"
-
   modal:
     publish:
       title:
diff --git a/spec/mailers/previews/administration_mailer_preview.rb b/spec/mailers/previews/administration_mailer_preview.rb
index 67f6708da..6523b25f8 100644
--- a/spec/mailers/previews/administration_mailer_preview.rb
+++ b/spec/mailers/previews/administration_mailer_preview.rb
@@ -19,12 +19,6 @@ class AdministrationMailerPreview < ActionMailer::Preview
     AdministrationMailer.refuse_admin('bad_admin@pipo.com')
   end
 
-  def dossier_expiration_summary
-    expiring_dossiers = [Dossier.new(id: 100, procedure: procedure_1)]
-    expired_dossiers = [Dossier.new(id: 100, procedure: procedure_2)]
-    AdministrationMailer.dossier_expiration_summary(expiring_dossiers, expired_dossiers)
-  end
-
   private
 
   def procedure_1