05/17/2021 How to save up to 500€/year switching from Mailchimp to Open Source Mailtrain and AWS SES My newsletter Le Courrier du hacker (3,800 subscribers, 176 issues) is 3 years old and Mailchimp costs were becoming unbearable for a small project ($50 a month, $600 a year), with still limited revenues nowadays. Switching to the Open Source Mailtrain plugged to the AWS Simple Email Service (SES) will dramatically reduce the associated costs. First things first, thanks a lot to Pierre-Gilles Leymarie for his own article about switching to Mailtrain/SES. I owe him (and soon you too) so much. This article will be a step-by-step about how to set up Mailtrain/SES on a dedicated server running Linux.