Marketing email is opt-in, full stop. When a customer joins, the form asks separately whether they want emails beyond their card, and every win-back email or points-expiry reminder carries an unsubscribe link. A customer who unsubscribes keeps their stamps and their reward; they just stop being emailed.
Autivia does not send email on behalf of your payment provider, does not buy lists, and does not sell customer data. Exports exist so you can take your customers elsewhere if you leave — that is your data, and every export is logged.
We configure and test email delivery during onboarding. Autivia covers shared provider costs within your plan allowance, so you do not need a separate Resend subscription. We agree the sending address with you before launch, and enable follow-ups after delivery checks pass.