Account For Your Customers’ Email Opt Out Preferences
Where: This change applies to Lightning Experience and Salesforce Classic in Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
Who: Reps with the Send Non-Commercial Email permission can send non-commercial email. This permission is on by default for all standard profiles that send email and for already-created custom profiles.
How: To use this feature, enable Data Protection and Privacy and Enforce email privacy settings.
Reps with the permission confirm that the email is non-commercial before it’s sent.
To prevent a rep from sending email to customers who’ve opted out, disable Send Non-Commercial Email in their permission set.