Re:Ask HN: How do you do your email delivery?
by huxley on Sunday January 15, 2012 @12:34PM
(#3467657)
True, though MailChimp does offer STS (Simple Transactional Service) which builds on top of Amazon SES (you only pay Amazon's fees, the service is free from MailChimp).
http://apidocs.mailchimp.com/sts/1.0/