Detach email for thunderbird/mac

I am using a MAC, so the programmer must have mac experience I would like a plug in to Thunderbird that works similar to [login to view URL] It may not have to have everything, but it is required that i can click on a single button and it will save the file into a folder based on the senders name. You can download ezdetach to see how it works. In the project before we get started you will need to outline the functionality (user stories) show what the screens will look like The install must be very easy