A constituent received an email that was sent to our center's newsletter interest opt in group, but the constituent is opted out of center emails. Why did the constituent still receive the email?
When constituents are opted out of center email, they will not receive mail scheduled and sent from that center. However, they are not opted out of the interests within that center. If an email is scheduled and sent from All Centers mode and targets an interest opt-in group for a specific center as the audience, constituents in that opt-in group will be in the target audience regardless of their center opt-out status.