diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
index 498633860..8700d4539 100644
--- a/app/mailers/application_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -1,4 +1,4 @@
 class ApplicationMailer < ActionMailer::Base
-  default from: "demarches-simplifiees.fr <#{I18n.t('dynamics.contact_email')}>"
+  default from: "demarches-simplifiees.fr <#{CONTACT_EMAIL}>"
   layout 'mailer'
 end
diff --git a/app/mailers/notification_mailer.rb b/app/mailers/notification_mailer.rb
index e01a681e4..6fc9d4dbd 100644
--- a/app/mailers/notification_mailer.rb
+++ b/app/mailers/notification_mailer.rb
@@ -54,7 +54,7 @@ class NotificationMailer < ApplicationMailer
   def create_commentaire_for_notification(dossier, subject, body)
     Commentaire.create(
       dossier: dossier,
-      email: I18n.t("dynamics.contact_email"),
+      email: CONTACT_EMAIL,
       body: ["[#{subject}]", body].join("<br><br>")
     )
   end
diff --git a/app/models/commentaire.rb b/app/models/commentaire.rb
index be89d2ef8..e362fa8b0 100644
--- a/app/models/commentaire.rb
+++ b/app/models/commentaire.rb
@@ -36,7 +36,7 @@ class Commentaire < ApplicationRecord
     # - If a user or an invited user posted a commentaire, do nothing,
     #   the notification system will properly
     # - Otherwise, a gestionnaire posted a commentaire, we need to notify the user
-    if !email.in?([I18n.t("dynamics.contact_email"), dossier_user_email, *invited_users_emails])
+    if !email.in?([CONTACT_EMAIL, dossier_user_email, *invited_users_emails])
       notify_user
     end
   end
diff --git a/app/views/layouts/_footer.html.haml b/app/views/layouts/_footer.html.haml
index d2ed0870a..1eae6f9ab 100644
--- a/app/views/layouts/_footer.html.haml
+++ b/app/views/layouts/_footer.html.haml
@@ -9,4 +9,4 @@
     \-
     = link_to 'CGU / Mentions légales', CGU_URL
     \-
-    = link_to 'Contact', "mailto:"+t('dynamics.contact_email')
+    = link_to 'Contact', "mailto:#{CONTACT_EMAIL}"
diff --git a/app/views/layouts/_new_footer.html.haml b/app/views/layouts/_new_footer.html.haml
index 462609955..33ed6d2cc 100644
--- a/app/views/layouts/_new_footer.html.haml
+++ b/app/views/layouts/_new_footer.html.haml
@@ -30,7 +30,7 @@
         %ul.footer-links
           %li.footer-link
             = link_to "Contact",
-              "mailto:#{t('dynamics.contact_email')}",
+              "mailto:#{CONTACT_EMAIL}",
               :class => "footer-link"
           %li.footer-link
             = link_to "Documentation", DOC_URL, :class => "footer-link", :target => "_blank", rel: "noopener noreferrer"
diff --git a/app/views/root/landing.html.haml b/app/views/root/landing.html.haml
index 7fd087644..38bed2226 100644
--- a/app/views/root/landing.html.haml
+++ b/app/views/root/landing.html.haml
@@ -204,7 +204,7 @@
           %p.cta-panel-explanation Notre équipe est disponible pour vous renseigner et vous aider
         %div
           = link_to "Contactez-nous",
-            "mailto:#{t("dynamics.contact_email")}?subject=Question%20à%20propos%20de%20demarches-simplifiees.fr",
+            "mailto:#{CONTACT_EMAIL}?subject=Question%20à%20propos%20de%20demarches-simplifiees.fr",
             class: "cta-panel-button-white",
             target: "_blank",
             rel: "noopener noreferrer"
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index 1ac79d92e..79919ad70 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -12,7 +12,7 @@ Devise.setup do |config|
   # Configure the e-mail address which will be shown in Devise::Mailer,
   # note that it will be overwritten if you use your own mailer class
   # with default "from" parameter.
-  config.mailer_sender = "demarches-simplifiees.fr <#{I18n.t('dynamics.contact_email')}>"
+  config.mailer_sender = "demarches-simplifiees.fr <#{CONTACT_EMAIL}>"
 
   # Configure the class responsible to send e-mails.
   config.mailer = 'DeviseUserMailer'
diff --git a/config/locales/dynamics/fr.yml b/config/locales/dynamics/fr.yml
index fdc533e38..9932fc82b 100644
--- a/config/locales/dynamics/fr.yml
+++ b/config/locales/dynamics/fr.yml
@@ -1,7 +1,6 @@
 fr:
   dynamics:
     page_title: demarches-simplifiees.fr
-    contact_email: contact@demarches-simplifiees.fr
     users:
       connexion_title: Connexion
       mes_dossiers: 'Mes dossiers'
diff --git a/lib/tasks/2018_05_30_missed_ar_messages.rake b/lib/tasks/2018_05_30_missed_ar_messages.rake
index 6f2cf858e..e3e7a4b90 100644
--- a/lib/tasks/2018_05_30_missed_ar_messages.rake
+++ b/lib/tasks/2018_05_30_missed_ar_messages.rake
@@ -21,7 +21,7 @@ namespace :'2018_05_30_missed_ar_messages' do
 
     Commentaire.create(
       dossier: dossier,
-      email: I18n.t("dynamics.contact_email"),
+      email: CONTACT_EMAIL,
       body: "[#{subject}]<br><br>#{body}",
       created_at: date
     )