I have redirected folders using Samba4 AD/DC. When opening many of the 'My Documents' files I get the message, "Protected View This file originated from and Internet location and might be unsafe." However, for many other documents in the same folder I get no such message. It should be noted that these files did not originate from the Internet and were mostly created in situ right in the My Documents folder.
I've checked file ownership, permissions, ACLs, everything I can think of and can find no difference in attributes between the documents that give this message and those that do not. I would like to know how Windows is making this determination so I can turn on or off whatever attribute is involved.
I do have instructions on disabling the Protected View feature altogether, but I'd rather not do that. I'd rather figure out what triggers this notice and clear it for the files in question.