diff --git a/app/models/user.rb b/app/models/user.rb
index 10b6a14d..58f293d6 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -673,9 +673,9 @@ class User < Principal
     base_reload(*args)
   end
 
-  def mail=(arg)
-    write_attribute(:mail, arg.to_s.strip)
-  end
+  # def mail=(arg)
+  #   write_attribute(:mail, arg.to_s.strip)
+  # end
 
   def identity_url=(url)
     if url.blank?