4 files changed, 2 insertions, 4 deletions
diff --git a/app/models/mail_handler.rb b/app/models/mail_handler.rb
index 4b63ac53d..88a2e6dbc 100644
--- a/app/models/mail_handler.rb
+++ b/app/models/mail_handler.rb
@@ -73,7 +73,6 @@ class MailHandler < ActionMailer::Base
 
   cattr_accessor :ignored_emails_headers
   @@ignored_emails_headers = {
-    'X-Auto-Response-Suppress' => /(oof|all)/,
     'Auto-Submitted' => /\Aauto-(replied|generated)/,
     'X-Autoreply' => 'yes'
   }
diff --git a/app/models/mailer.rb b/app/models/mailer.rb
index 9953ea509..4bfa45b0b 100644
--- a/app/models/mailer.rb
+++ b/app/models/mailer.rb
@@ -389,7 +389,7 @@ class Mailer < ActionMailer::Base
     headers.reverse_merge! 'X-Mailer' => 'Redmine',
             'X-Redmine-Host' => Setting.host_name,
             'X-Redmine-Site' => Setting.app_title,
-            'X-Auto-Response-Suppress' => 'OOF',
+            'X-Auto-Response-Suppress' => 'All',
             'Auto-Submitted' => 'auto-generated',
             'From' => Setting.mail_from,
             'List-Id' => "<#{Setting.mail_from.to_s.gsub('@', '.')}>"
diff --git a/test/unit/mail_handler_test.rb b/test/unit/mail_handler_test.rb
index f70128dd2..2ae3cb5c1 100644
--- a/test/unit/mail_handler_test.rb
+++ b/test/unit/mail_handler_test.rb
@@ -629,7 +629,6 @@ class MailHandlerTest < ActiveSupport::TestCase
   def test_should_ignore_auto_replied_emails
     MailHandler.any_instance.expects(:dispatch).never
     [
-      "X-Auto-Response-Suppress: OOF",
       "Auto-Submitted: auto-replied",
       "Auto-Submitted: Auto-Replied",
       "Auto-Submitted: auto-generated",
diff --git a/test/unit/mailer_test.rb b/test/unit/mailer_test.rb
index 52b6a62ee..0b985c171 100644
--- a/test/unit/mailer_test.rb
+++ b/test/unit/mailer_test.rb
@@ -197,7 +197,7 @@ class MailerTest < ActiveSupport::TestCase
     Mailer.deliver_issue_add(issue)
     mail = last_email
     assert_not_nil mail
-    assert_equal 'OOF', mail.header['X-Auto-Response-Suppress'].to_s
+    assert_equal 'All', mail.header['X-Auto-Response-Suppress'].to_s
     assert_equal 'auto-generated', mail.header['Auto-Submitted'].to_s
     assert_equal '<redmine.example.net>', mail.header['List-Id'].to_s
   end