I agree with ElectroScan, having a seed list option would be great. Not sure if this already exists and is hidden somewhere? I used to use Marketo and there was an option in it to do this. I currently just have a list set up of all of our employees who receive the emails when I send to their specific customers, but recently the system has been unsubscribing them and the message for it is “there isn’t a GDPR-compliant legal reason for sending emails” - I did mark the list when I uploaded it as “performance of a contract” per recommendations I received.