Unfortunately this is standard MailChimp way of doing things ever since they screwed over paying customers and merged with Mandrill [1]. They are the opposite of a transparent organization - they are the GoDaddy of this business. (I was super pissed once they removed their status page..WTF). We hit these errors a few months ago with our clients and I put up a roadmap to move all of them off the terrible joke that Man…
I was already angry enough when mailchimp merged mandrill with its main service