Each time a member purchases a membership on your Communal instance, it will trigger an email to all admins in your system. There might be situations where certain admins want to be removed from these automated emails. To resolve this, users are able to unsubscribe from notifications by going to their User Dashboard, Settings then General and de-select the box for notifications and click Save. Additionally, all communications sent via Communal will have an unsubscribe button at the bottom of the email. 

Additionally, if someone wants to subscribe to these emails, you can simply assign them an admin role. Instructions are outlined here.