It would be more complicated than that in the vast majority of cases. Sure, you would catch people trying to impersonate major corporations that everyone is fa

It would be more complicated than that in the vast majority of cases. Sure, you would catch people trying to impersonate major corporations that everyone is familiar with. With well trained staff and clear polices you could also catch some more obscure cases, such as companies that serve businesses yet is relatively unknown outside corporate environments. It becomes much more difficult to verify authenticity otherwise since it would involve research, not just reading names. That research would also have to be conducted with care, since all but the most trivial of scams would factor that into their methodology.