diff --git a/config/environments/production.rb b/config/environments/production.rb
index 44964fd..642f8c8 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -110,4 +110,6 @@
   # config.active_record.database_selector = { delay: 2.seconds }
   # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
   # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
+
+  config.action_mailer.default_url_options = { host: 'rails-api-learning-camp.herokuapp.com' }
 end
diff --git a/config/initializers/devise_token_auth.rb b/config/initializers/devise_token_auth.rb
index dfdb32d..3875021 100644
--- a/config/initializers/devise_token_auth.rb
+++ b/config/initializers/devise_token_auth.rb
@@ -56,7 +56,7 @@
   # By default DeviseTokenAuth will not send confirmation email, even when including
   # devise confirmable module. If you want to use devise confirmable module and
   # send email, set it to true. (This is a setting for compatibility)
-  # config.send_confirmation_email = true
+  config.send_confirmation_email = true
 
   # config.default_confirm_success_url = 'confirmed'
 end
diff --git a/spec/requests/passwords_reset_spec.rb b/spec/requests/passwords_reset_spec.rb
new file mode 100644
index 0000000..ce915b4
--- /dev/null
+++ b/spec/requests/passwords_reset_spec.rb
@@ -0,0 +1,50 @@
+require 'rails_helper'
+
+RSpec.describe 'POST registration/password', type: :request do
+  let(:user) { create(:user) }
+
+  subject(:send_reset_instructions) { post user_password_path, params: params, as: :json }
+
+  context 'with valid params' do
+    let(:params) do
+      {
+        email: user.email,
+        redirect_url: 'registration/password'
+      }
+    end
+
+    it 'returns a successful response' do
+      send_reset_instructions
+      expect(response).to be_successful
+    end
+
+    it 'send an email' do
+      expect { send_reset_instructions }.to change { ActionMailer::Base.deliveries.count }.by(1)
+    end
+
+    it 'check email account and subject' do
+      send_reset_instructions
+      email = ActionMailer::Base.deliveries.last
+      expect(email.to).to include(user.email)
+      expect(email.subject).to eq('Reset password instructions')
+    end
+  end
+
+  context 'with invalid params' do
+    let(:params) do
+      {
+        email: 'testemail@railsapi.uy',
+        redirect_url: 'registration/password'
+      }
+    end
+
+    it 'returns a not found response' do
+      send_reset_instructions
+      expect(response).to be_not_found
+    end
+
+    it 'does not send an email' do
+      expect { send_reset_instructions }.to_not change { ActionMailer::Base.deliveries.count }
+    end
+  end
+end