diff --git a/app/mailers/application_mailer.rb b/app/mailers/application_mailer.rb
index d84cb6e7..35ed51c0 100644
--- a/app/mailers/application_mailer.rb
+++ b/app/mailers/application_mailer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
 class ApplicationMailer < ActionMailer::Base
-  default from: 'from@example.com'
+  default from: 'no-reply@example.com'
   layout 'mailer'
 end
diff --git a/config/application.rb b/config/application.rb
index 64e201f5..094793d7 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -48,7 +48,7 @@ class Application < Rails::Application
     config.action_mailer.default_url_options = { host: ENV.fetch('SERVER_HOST', nil),
                                                  port: ENV.fetch('PORT', 3000) }
     config.action_mailer.default_options = {
-      from: 'no-reply@api.com'
+      from: 'no-reply@example.com'
     }
 
     config.action_mailer.deliver_later_queue_name = 'mailers'
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index d26bcb5c..fe50ca55 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -7,7 +7,7 @@
   # 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 = 'no-reply@yourapi.com'
+  config.mailer_sender = 'no-reply@example.com'
 
   # Configure the class responsible to send e-mails.
   # config.mailer = 'Devise::Mailer'
diff --git a/spec/requests/api/v1/users/create_spec.rb b/spec/requests/api/v1/users/create_spec.rb
index 4c7eea95..f2d19b19 100644
--- a/spec/requests/api/v1/users/create_spec.rb
+++ b/spec/requests/api/v1/users/create_spec.rb
@@ -4,7 +4,7 @@
   subject { post user_registration_path, params:, as: :json }
 
   let(:user) { User.last }
-  let(:email) { 'test@test.com' }
+  let(:email) { 'test@example.com' }
 
   let(:params) do
     {