In June we have an automatically generated trait for filtering out non-professional emails from your analytics and automations.
The way this works is that we'll take the email you send for your users with identify calls and add a trait to them based on whether the domain belongs to this list or not.
This list is open-source, which means you can both use it for your own product and that you can contribute back improvements to it!
If you see any results that you don't agree with or don't like, feel free to open an issue in our repository and we'll be happy to integrate them with our list.