Add reply-to to e-mail headers by default. Closes #474

app/mailers/devise/mailer.rb

@@ -18,8 +18,7 @@ class Devise::Mailer < ::ActionMailer::Base
 
   # Configure default email options
   def setup_mail(record, action)
-    initialize_from_record record
+    initialize_from_record(record)
-    
     mail headers_for(action)
   end
 
@@ -44,6 +43,10 @@ class Devise::Mailer < ::ActionMailer::Base
       headers.merge!(resource.headers_for(action))
     end
 
+    unless headers.key?(:reply_to)
+      headers[:reply_to] = headers[:from]
+    end
+
     headers
   end
 

test/mailers/confirmation_instructions_test.rb

@@ -35,6 +35,10 @@ class ConfirmationInstructionsTest < ActionMailer::TestCase
     assert_equal ['test@example.com'], mail.from
   end
 
+  test 'setup reply to as copy from sender' do
+    assert_equal ['test@example.com'], mail.reply_to
+  end
+
   test 'setup subject from I18n' do
     store_translations :en, :devise => { :mailer => { :confirmation_instructions => { :subject => 'Account Confirmation' } } } do
       assert_equal 'Account Confirmation', mail.subject

test/mailers/reset_password_instructions_test.rb

@@ -38,6 +38,10 @@ class ResetPasswordInstructionsTest < ActionMailer::TestCase
     assert_equal ['test@example.com'], mail.from
   end
 
+  test 'setup reply to as copy from sender' do
+    assert_equal ['test@example.com'], mail.reply_to
+  end
+
   test 'setup subject from I18n' do
     store_translations :en, :devise => { :mailer => { :reset_password_instructions => { :subject => 'Reset instructions' } } } do
       assert_equal 'Reset instructions', mail.subject

test/mailers/unlock_instructions_test.rb

@@ -38,6 +38,10 @@ class UnlockInstructionsTest < ActionMailer::TestCase
     assert_equal ['test@example.com'], mail.from
   end
 
+  test 'setup reply to as copy from sender' do
+    assert_equal ['test@example.com'], mail.reply_to
+  end
+
   test 'setup subject from I18n' do
     store_translations :en, :devise => { :mailer => { :unlock_instructions =>  { :subject => 'Yo unlock instructions' } } } do
       assert_equal 'Yo unlock instructions', mail.subject