MJML - The open source framework for responsive emails
FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.
inzpire.me - An end-to-end solution for influencer marketing
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Assmb.ly - Powered by intelligent technology, we’re delivering the content readers need, exactly when they need it, across four dynamic brands (and counting).