As you may know, autoresponders are dead for user onboarding. You need to send targeted messages to your users according to their behaviour in your software. In this article, I show you the 6 steps of automating your onboarding emails from planning to execution: how to use success milestones as event triggers, how to use API calls for that purpose, how to build your client onboarding emails on it and more. And I show it on an imagined, example software.