Mandrill was a commodity service much like electricity or water which people relied on it just working.<p>If the service was not making enough money then raise the price to whatever you need to and either grandfather in old customers or give very long lead times so your customers have the time to transition away if they wish.<p>This is such an obvious way to go that I think there must be something very dysfunctional within the leadership of Mailchimp. Did nobody there foresee what was the likely outcome of this move and advise against it? Did they talk to any of their customers before making this change?