Index: app/models/user_preference.rb
===================================================================
--- app/models/user_preference.rb	(revision 15058)
+++ app/models/user_preference.rb	(working copy)
@@ -25,8 +25,13 @@
 
   def initialize(attributes=nil, *args)
     super
-    if new_record? && !(attributes && attributes.key?(:hide_mail))
-      self.hide_mail = Setting.default_users_hide_mail?
+    if new_record?
+      if !(attributes && attributes.key?(:hide_mail))
+        self.hide_mail = Setting.default_users_hide_mail?
+      end
+      if !(attributes && attributes.key?(:no_self_notified))
+        self.no_self_notified = !Setting.default_users_self_notification?
+      end
     end
     self.others ||= {}
   end
Index: app/views/settings/_authentication.html.erb
===================================================================
--- app/views/settings/_authentication.html.erb	(revision 15058)
+++ app/views/settings/_authentication.html.erb	(working copy)
@@ -41,6 +41,7 @@
 
   <div class="tabular settings">
     <p><%= setting_check_box :default_users_hide_mail, :label => :field_hide_mail %></p>
+    <p><%= setting_check_box :default_users_self_notification, :label => :field_self_notification %></p>
   </div>
 </fieldset>
 
Index: config/locales/en.yml
===================================================================
--- config/locales/en.yml	(revision 15058)
+++ config/locales/en.yml	(working copy)
@@ -295,6 +295,7 @@
   field_done_ratio: "% Done"
   field_auth_source: Authentication mode
   field_hide_mail: Hide my email address
+  field_self_notification: Email self notification
   field_comments: Comment
   field_url: URL
   field_start_page: Start page
Index: config/settings.yml
===================================================================
--- config/settings.yml	(revision 15058)
+++ config/settings.yml	(working copy)
@@ -219,6 +219,8 @@
 # multiple values accepted, comma separated
 default_users_hide_mail:
   default: 1
+default_users_self_notification:
+  default: 1
 repositories_encodings:
   default: ''
 # encoding used to convert commit logs to UTF-8
Index: test/unit/user_preference_test.rb
===================================================================
--- test/unit/user_preference_test.rb	(revision 15058)
+++ test/unit/user_preference_test.rb	(working copy)
@@ -32,6 +32,18 @@
     end
   end
 
+  def test_self_notification_should_default_to_true
+    preference = UserPreference.new
+    assert_equal true, preference.self_notification
+  end
+
+  def test_self_notification_should_default_to_false_with_setting
+    with_settings :default_users_self_notification => '0' do
+      preference = UserPreference.new
+      assert_equal false, preference.self_notification
+    end
+  end
+
   def test_create
     user = User.new(:firstname => "new", :lastname => "user", :mail => "newuser@somenet.foo")
     user.login = "newuser"