I am responsible for a Mac Mini Server environment someone else set up, and every so often something throws me a curveball. Some of our network users (and it turns out this has been the case for nearly a year) can't do things like open Mail (they don't have permission to the relevant library folder) and things like delete or move files. I've been through all the permissions (both Posix by right clicking and get Info and ACL through Server.App) on each users home folder, and have ensured that the user seems to have the right access, and is the owner. One of the quirks I've discovered is that on the ACL for each user who works, there is a user called 'root' with Read Write access. Trying to add this root user for the others doesn't work as it doesn't seem to be on the system. I'm running out of options and knowledge here - does anyone know of a good guide to clearing all ACLs and Permissions on a network user's home folder, and then rebuilding them? Cheers!