diff --git a/app/controllers/admin/commentaires_controller.rb b/app/controllers/admin/commentaires_controller.rb
new file mode 100644
index 000000000..e86f75c65
--- /dev/null
+++ b/app/controllers/admin/commentaires_controller.rb
@@ -0,0 +1,3 @@
+class Admin::CommentairesController < CommentairesController
+  before_action :authenticate_user!
+end
\ No newline at end of file
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index cc7b1609c..81269a181 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -32,10 +32,15 @@ class Dossier < ActiveRecord::Base
     end
   end
 
+  def mailto
+    "mailto:#{formulaire.email_contact}?subject=Demande%20de%20contact&body=Bonjour,%0A%0AJe%20vous%20informe%20que%20j'ai%20rempli%20le%20dossier%20sur%20admi_facile.%20Vous%20pouvez%20y%20acc%C3%A9der%20en%20suivant%20le%20lien%20suivant%20:%20%0Ahttps://admi_facile.apientreprise.fr/admin/dossiers/#{id}%20%0A%20Le%20num%C3%A9ro%20de%20mon%20dossier%20est%20le%20#{id}"
+  end
+
   private
 
   def build_default_cerfa
     build_cerfa
     true
   end
+
 end
diff --git a/app/views/recapitulatif/_commentaires_flux.html.haml b/app/views/recapitulatif/_commentaires_flux.html.haml
index bf70e9714..62bd43289 100644
--- a/app/views/recapitulatif/_commentaires_flux.html.haml
+++ b/app/views/recapitulatif/_commentaires_flux.html.haml
@@ -14,7 +14,7 @@
       %br
 
     %h4{style: 'margin-bottom:2%'} Nouveau
-    = form_tag(url_for({controller: '/commentaires', action: :create}), class: 'form-inline', method: 'POST') do
+    = form_tag(url_for({ controller: :commentaires, action: :create, dossier_id: @dossier.id }), class: 'form-inline', method: 'POST') do
       %input.form-control{:type => 'text', style: 'width: 30%; margin-bottom:2%', :id => 'email_commentaire', :name => 'email_commentaire', :value => @commentaire_email}
       %textarea.form-control{:id => 'texte_commentaire', :name => 'texte_commentaire', style: 'width: 100%; margin-bottom:2%', rows: '5', maxlength: '255'}
       %br
diff --git a/app/views/recapitulatif/show.html.haml b/app/views/recapitulatif/show.html.haml
index c74a978ba..378819538 100644
--- a/app/views/recapitulatif/show.html.haml
+++ b/app/views/recapitulatif/show.html.haml
@@ -20,4 +20,8 @@
 
 = render partial: '/dossiers/infos_dossier'
 %br
+%a.btn.btn-success{ href: @dossier.mailto }
+  Contacter l'administration
+
+
 = render partial: 'commentaires_flux'
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index 1e877ca51..d0feb64cb 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -44,6 +44,7 @@ Rails.application.routes.draw do
   namespace :admin do
     get '/dossiers/:dossier_id' => 'dossier#show'
     get '/dossiers' => 'dossier#index'
+    post '/commentaire' => 'commentaires#create'
   end
 
   # The priority is based upon order of creation: first created -> highest priority.
diff --git a/spec/features/admin/dossier_page/_commentaires_flux_spec.rb b/spec/features/admin/dossier_page/_commentaires_flux_spec.rb
index fce40f77a..b19fe0fc9 100644
--- a/spec/features/admin/dossier_page/_commentaires_flux_spec.rb
+++ b/spec/features/admin/dossier_page/_commentaires_flux_spec.rb
@@ -29,7 +29,7 @@ feature '_Commentaires_Flux Admin/Dossier#Show Page' do
 
   context 'Affichage du formulaire de commentaire' do
     scenario 'Le formulaire envoie vers /dossiers/:dossier_id/commentaire en #POST' do
-      expect(page).to have_selector("form[action='/dossiers/#{dossier_id}/commentaire'][method=post]")
+      expect(page).to have_selector("form[action='/admin/commentaire?dossier_id=#{dossier_id}'][method=post]")
     end
 
     scenario 'Champs de texte' do
diff --git a/spec/models/dossier_spec.rb b/spec/models/dossier_spec.rb
index 26568599e..b2fac1938 100644
--- a/spec/models/dossier_spec.rb
+++ b/spec/models/dossier_spec.rb
@@ -121,5 +121,12 @@ describe Dossier do
         end
       end
     end
+
+    describe '#mailto' do
+      let(:dossier) { create(:dossier) }
+      let(:email_contact) { dossier.formulaire.email_contact }
+      subject { dossier.mailto }
+      it { is_expected.to eq("mailto:#{email_contact}?subject=Demande%20de%20contact&body=Bonjour,%0A%0AJe%20vous%20informe%20que%20j'ai%20rempli%20le%20dossier%20sur%20admi_facile.%20Vous%20pouvez%20y%20acc%C3%A9der%20en%20suivant%20le%20lien%20suivant%20:%20%0Ahttps://admi_facile.apientreprise.fr/admin/dossiers/#{dossier.id}%20%0A%20Le%20num%C3%A9ro%20de%20mon%20dossier%20est%20le%20#{dossier.id}")}
+    end
   end
 end
diff --git a/spec/views/recapitulatif/show.html.haml_spec.rb b/spec/views/recapitulatif/show.html.haml_spec.rb
new file mode 100644
index 000000000..c4a04f3b0
--- /dev/null
+++ b/spec/views/recapitulatif/show.html.haml_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+
+describe 'recapitulatif/show.html.haml', type: :view do
+  let(:dossier) { create(:dossier, :with_entreprise) }
+  before do
+    assign(:dossier, dossier.decorate)
+    assign(:commentaires, dossier.commentaires)
+    render
+  end
+  it { expect(rendered).to have_content("Contacter l'administration") }
+  it { expect(rendered).to include(dossier.mailto.gsub('&','&amp;')) }
+end