make sure to use the user's time zone when composing test messages

app/controllers/messages_controller.rb

@@ -17,7 +17,7 @@
         @message.from = "test@#{domain.name}"
       end
     end
-    @message.subject = "Test Message at #{Time.now.to_s(:long)}"
+    @message.subject = "Test Message at #{Time.zone.now.to_s(:long)}"
     @message.plain_body = "This is a message to test the delivery of messages through Postal."
   end