diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
index 243266f78..8730c2d2e 100644
--- a/app/mailers/application_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -1,4 +1,4 @@
 class ApplicationMailer < ActionMailer::Base
-  default from: "'Téléprocédures Simplifiées' <contact@tps.apientreprise.fr>"
+  default from: "'Téléprocédures Simplifiées' <#{I18n.t('dynamics.contact_email')}>"
   layout 'mailer'
 end
diff --git a/app/mailers/notification_mailer.rb b/app/mailers/notification_mailer.rb
index 9bf486f17..d2ddbb195 100644
--- a/app/mailers/notification_mailer.rb
+++ b/app/mailers/notification_mailer.rb
@@ -21,7 +21,7 @@ class NotificationMailer < ApplicationMailer
   def create_commentaire_for_notification
     Commentaire.create(
       dossier: @dossier,
-      email: "contact@tps.apientreprise.fr",
+      email: I18n.t("dynamics.contact_email"),
       body: ["[#{@obj}]", @body].join("<br><br>")
     )
   end
diff --git a/app/models/commentaire.rb b/app/models/commentaire.rb
index 001976ab3..d62e87eac 100644
--- a/app/models/commentaire.rb
+++ b/app/models/commentaire.rb
@@ -17,7 +17,7 @@ class Commentaire < ActiveRecord::Base
     invited_users_emails = dossier.invites_user.pluck(:email).to_a
 
     case email
-    when "contact@tps.apientreprise.fr"
+    when I18n.t("dynamics.contact_email")
       # The commentaire is a copy of an automated notification email
       # we sent to a user, so do nothing
     when dossier_user_email, *invited_users_emails
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index 37cbd567a..60f55f640 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -10,7 +10,7 @@ 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 = "'Téléprocédures Simplifiées' <contact@tps.apientreprise.fr>"
+  config.mailer_sender = "'Téléprocédures Simplifiées' <#{I18n.t('dynamics.contact_email')}>"
 
   # Configure the class responsible to send e-mails.
   # config.mailer = 'Devise::Mailer'