Is this going to affect MailChimp's deliverability? It seems like it would, my understanding is the reason most relays and blacklists are so lenient with MailChimp is exactly because of their double opt-in policy.
Looks like they're ultimately throwing their long-term business under the bus for a short burst of extra cash.
Looks like they're ultimately throwing their long-term business under the bus for a short burst of extra cash.