What files are included in the OSX Server backup?

Hey,

I'm a bit worried about my mail database on my OSX 10.8 Server.

I'm using Time Machine all the time to backup the server but I'm not quite sure if the mail database (send/recieved/folders/users) of all my accounts are saved with Time Machine or not.

Does anyone know what directories are saved using Time Machine on a Server? Was digging through the backup but it told me I don't have rights to view the filders :/ bummer

Thanks in advance 🙂