DFS Namespace - Standalone / Exclude Targets Outside of the Clients Site

Hey,

I've set up a DFS namespace in standalone mode (Server 2008 R2) due to the DFL. If the namespace is hosted on Server1 in Site1, what should I expect to happen if the 'Exclude Targets Outside of the Clients Site' option is checked and a user from Site2 tried to access \\server1\namespace\folderA?

FolderA has 2 targets, Server1 and Server2.

Thanks for any help.