If a past participant wishes to no longer receive emails from you, you can manually upload a CSV that excludes that person. However, you would need to manually exclude this person for every subsequent CSV you upload.
Alternatively, you can change the email of the participant's profile in Active Works Endurance so that the email becomes undeliverable:
- Select the Blue Magnifying Glass icon at the top right of Active Works page
- Search for desired individual and click on them
- Click Blue Arrow beside person's name
- Change email to an unfinished email address (e.g. from "test@gmail.com" to "test@gmail.co")
- Click Save