This doesn't sound right. Our anti-abuse systems don't discriminate against self-hosted email by default. You can find the possible reasons for account suspensi

This doesn't sound right. Our anti-abuse systems don't discriminate against self-hosted email by default. You can find the possible reasons for account suspension here: https://proton.me/legal/terms https://proton.me/legal/terms. You're also welcome to share your support ticket number with us here so we can track it internally.