You can do this by adding a Formatter step to find and remove the email addresses of people in your organization, and then a Filter step that looks for any remaining emails.
The Formatter by Zapier step
- Add a Formatter step in the Zap and select Text > Find and replace.
- Add the Attendees as the input for the step
- For the search text, type for the full domain of your organization, including the '@' symbol (eg @zapier.com)
- Leave the replace section blank so that it will delete any examples that it finds
The Filter step
- Add a filter step to the Zap after the Formatter step
- Set it so that the Zap will only continue if the output of the Formatter step contains the symbol '@'
Any of your colleague's email addresses will have been removed, so the only @ that's left will belong to someone from outside of your organization!
This is a fun workaround that you can use for all sorts of things - any time where you want to find the odd one out in a list!
Has anyone used a similar workaround? What did you use it for?