diff --git a/config/application.rb b/config/application.rb
index 1c92888..879cffc 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -40,5 +40,11 @@ module TurniereBackend
         resource '*', headers: :any, methods: :any, expose: ['access-token', 'client', 'expiry', 'uid']
       end
     end
+
+    # Mail
+    config.action_mailer.default_url_options = { host: 'turnie.re' }
+    config.action_mailer.default_options = {
+      from: 'noreply@turnie.re'
+    }
   end
 end
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 5e8fcca..3255142 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -54,7 +54,10 @@ Rails.application.configure do
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 
   # Mail
-  config.action_mailer.default_url_options = { host: 'localhost' }
+  config.action_mailer.default_url_options = { host: 'localhost:3000' }
   config.action_mailer.delivery_method = :smtp
-  config.action_mailer.smtp_settings = { address: 'localhost', port: 1025 }
+  config.action_mailer.smtp_settings = {
+    address: 'localhost',
+    port: 1025
+  }
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index d9fc517..99d3cb3 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -53,10 +53,6 @@ Rails.application.configure do
 
   config.action_mailer.perform_caching = false
 
-  # Ignore bad email addresses and do not raise email delivery errors.
-  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
-  # config.action_mailer.raise_delivery_errors = false
-
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).
   config.i18n.fallbacks = true
@@ -79,4 +75,13 @@ Rails.application.configure do
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Mail
+  config.action_mailer.raise_delivery_errors = true
+  config.action_mailer.default_url_options = { host: 'api01.turnie.re' }
+  config.action_mailer.delivery_method = :mailgun
+  config.action_mailer.mailgun_settings = {
+    api_key: Rails.application.credentials.dig(:mailgun, :api_key),
+    domain: Rails.application.credentials.dig(:mailgun, :domain)
+  }
 end
diff --git a/config/initializers/devise_token_auth.rb b/config/initializers/devise_token_auth.rb
index dec712e..4d3e626 100644
--- a/config/initializers/devise_token_auth.rb
+++ b/config/initializers/devise_token_auth.rb
@@ -47,4 +47,6 @@ DeviseTokenAuth.setup do |config|
   # If, however, you wish to integrate with legacy Devise authentication, you can
   # do so by enabling this flag. NOTE: This feature is highly experimental!
   # config.enable_standard_devise_support = false
+
+  config.default_confirm_success_url = 'https://frontend01.turnie.re'
 end