We switched from MailChimp to SES+Email Octopus. EO gives us the layout+list management stuff we needed, and SES gave us a huge drop in mail sending cost. The c

We switched from MailChimp to SES+Email Octopus. EO gives us the layout+list management stuff we needed, and SES gave us a huge drop in mail sending cost. The costs we were dealing with though was a lot higher-our small list has over 100k people on it and we were sending out multiple emails a month to that list and bigger.