diff --git a/app/models/email_address.rb b/app/models/email_address.rb
index b4e390679..62570e508 100644
--- a/app/models/email_address.rb
+++ b/app/models/email_address.rb
@@ -143,6 +143,14 @@ class EmailAddress < ActiveRecord::Base
   end
 
   def validate_email_domain
-    errors.add(:address, :invalid) unless self.class.valid_domain?(address)
+    domain = address.partition('@').last
+    return if self.class.valid_domain?(domain)
+
+    if User.current.logged?
+      errors.add(:address, :domain_not_allowed, :domain => domain)
+    else
+      # Don't display a detailed error message for anonymous users
+      errors.add(:address, :invalid)
+    end
   end
 end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 74067d42c..1ce9996cf 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -136,6 +136,7 @@ en:
         must_contain_lowercase: "must contain lowercase letters (a-z)"
         must_contain_digits: "must contain digits (0-9)"
         must_contain_special_chars: "must contain special characters (!, $, %, ...)"
+        domain_not_allowed: "contains a domain not allowed (%{domain})"
 
   actionview_instancetag_blank_option: Please select
 
diff --git a/test/functional/email_addresses_controller_test.rb b/test/functional/email_addresses_controller_test.rb
index b4f631997..17afe321f 100644
--- a/test/functional/email_addresses_controller_test.rb
+++ b/test/functional/email_addresses_controller_test.rb
@@ -131,7 +131,7 @@ class EmailAddressesControllerTest < Redmine::ControllerTest
           }
         )
         assert_response :success
-        assert_select_error 'Email is invalid'
+        assert_select_error 'Email contains a domain not allowed (black.example)'
       end
     end
 
@@ -147,7 +147,7 @@ class EmailAddressesControllerTest < Redmine::ControllerTest
           }
         )
         assert_response :success
-        assert_select_error 'Email is invalid'
+        assert_select_error 'Email contains a domain not allowed (example.fr)'
       end
     end
   end