▻http://dev.mailjet.com/guides/#mjml
MJML is a markup language designed to reduce the pain of coding a responsive email. Its semantic syntax makes it easy and straightforward while its rich standard components library fastens your development time and lightens your email codebase. MJML’s open-source engine takes care of translating the MJML you wrote into responsive HTML.
▻https://github.com/mjmlio/mjml
Un pseudo language pour faciliter le templating email.