So I often get users asking about their emails they can't find and I know that the index has failed yet again.
I found this article that seems to be explaining the issue and resolution but I'm having troubles executing it
I don't understand this point
Create a new Active Directory group that is named "ContentSubmitters" and then grant Admistrators and NetworkService full access to the group. This is a dummy group and should be used as a placeholder only. You might want to add a description so that the group is not removed.
Ok so I created that group and it became member of the admin group in AD but I've got no such user as NetworkService there! That's only a local account that is not even in the local Users and groups section on the server.
Anyone having an explanation or step by step guide I'd really appreciate it.