--- mailer.old.rb	2010-02-12 14:26:00.965651832 +0600
+++ mailer.rb	2010-02-12 14:21:30.334652607 +0600
@@ -346,6 +346,9 @@
       recipients []
       cc []
     end
+    s = Base64.encode64(@subject)
+    @subject = ''
+    s.split.each { |part| @subject << "=?utf-8?B?#{part.strip}?=\r\n" }
     super
   end