"To avoid gaining a bad IP reputation, we make requests from a large number of servers, any of which will be turned off it our system detects its IP is temporarily graylisted by some larger email server.

In the unlikely event that all our servers are graylisted at the same time, the API might be down. Within a few minutes, our automated system will create new servers elsewhere."

I just threw up a bit in my mouth. I guess the weekend project is to spin up an automated abuse reporting service for requests made from Anymail's virtual machine farm. I'm sure AWS would be pleased to hear they're running command and control for a botnet.

Do not abuse the commons for profit.