Neither of the emails to EU leads will say who specifically registered them, and we aren’t obligated to tell them the exact source of the data unless they specifically submit a request for this information. Regardless, if your leads don't know that you're sharing their information with HubSpot, receiving one of these emails may surprise them. To prevent confusion, make sure you’re transparent with your prospects. This includes having a robust and compliant privacy policy that informs your leads about how you use their data and how you share their information with your partners, such as HubSpot.