I respect your reputation as a sending service. Nonetheless, the policy is unreasonable for small non-profits who cannot afford nor have the staff to comply with your policy. Additionally, it is unreasonable to require re-confirm of 2500 happy subscribers for three complaints in 3 months.
Our subscribers have multiple ways to discontinue receiving email from us. Unsubscribes are immediate. Our subscribers may find it easier to unsubscribe via spam complaint than open the email click the unsubscribe link even though they have agreed to receive the email. The complainer is breaking an agreement, not the sender but your policy punishes the sender and is onerous for our happy subscribers.
GDPR does not apply in the US except in the state of California. We have no subscribers from the EU or California. You refuse to allow our administrator to know the identity of complaints and address them individually. Other email providers in the US identify the complaint source and provide redress. We will choose one of those providers instead and continue to not recommend Mailpoet for the above reasons.
