Index: app/models/mailer.rb
===================================================================
--- app/models/mailer.rb	(revision 17863)
+++ app/models/mailer.rb	(working copy)
@@ -621,7 +621,7 @@
             'X-Auto-Response-Suppress' => 'All',
             'Auto-Submitted' => 'auto-generated',
             'From' => Setting.mail_from,
-            'List-Id' => "<#{Setting.mail_from.to_s.tr('@', '.')}>"
+            'List-Id' => "<#{Setting.mail_from_address.tr('@', '.')}>"
 
     # Replaces users with their email addresses
     [:to, :cc, :bcc].each do |key|
Index: test/unit/mailer_test.rb
===================================================================
--- test/unit/mailer_test.rb	(revision 17863)
+++ test/unit/mailer_test.rb	(working copy)
@@ -213,6 +213,14 @@
     assert_equal issue.author.login, mail.header['X-Redmine-Sender'].to_s
   end
 
+  def test_email_headers_list_id_should_not_include_display_name
+    Setting.mail_from = 'Redmine <redmine@example.net>'
+    issue = Issue.find(1)
+    Mailer.deliver_issue_add(issue)
+    mail = last_email
+    assert_equal '<redmine.example.net>', mail.header['List-Id'].to_s
+  end
+
   def test_plain_text_mail
     Setting.plain_text_mail = 1
     journal = Journal.find(2)