i've been using this neat little extension for little under a year on my N96. Works without fault. One note for users who haven't yet tried this would be that if you have anything over 50 messages in your inbox/sent folders combined, the application won't be responsive straight away. It is simply loading the messages and filing them in order and you shouldn't panic. The more messages you have, the longer it will take. I had 500 messages once and it loaded in under 30 seconds. The initial loading time is longer and should ease the more you use it.