Does anyone know if there is a similar capability in eM Client?
“I apologize for this automatic reply to your email. To control spam, I now allow incoming messages only from senders I have approved beforehand. If you would like to be added to my list of approved senders, please fill out the short request form (see link below). Once I approve you, I will receive your original message in my inbox. You do not need to resend your message. I apologize for this one-time inconvenience. Click the link below to fill out the request: https://email@example.com&id=11e7-f932-0c43f76c-839f-0…”