Non-Employee Reporting Help

I was wondering if anyone had tips for analyzing the behavior only non-employee community members. I was able to identify employees by email domain but can’t figure a way to identify “everyone else”. These are some of the objective’s I’m hoping to research:

  • How many non-employee pageviews month-over-month
  • How many non-employee topics & posts created month-over-month

Has anyone written any queries in data explorer for this? Or are there other recommendations for tracking non-employee engagement?

Thanks everyone,
Jesse