Exclude certain domains in Automation program

Hi Act-On community,

After each webinar (or event in general) we push registration lists to our CRM-system via an automation program. Especially at the webinars, we have internal colleagues signing up who I don't want to push to CRM as a new lead. Is there a possibility to exclude certain domains?

I tried the early exit conditions by uploading a list of all employees there but it didn't work.

As a manual workaround, I extract form submissions, delete all internal employees, and upload the cleaned list again to be used in the automation program.

Any idea how this can be automated?

Thank you.

Best regards,

Anna-Maria