The world of email marketing is dominated by prehistoric tools that are difficult to use and offer little developer experience or joy. Resend aims to change this by building a modern email sending platform specifically tailored to developers, with a focus on extensible email primitives and great documentation. The company's founder, Zeno Rocha, believes that email is the most underrated technology in the world and that it's time for a developer-first approach. With its recent Launch Week, Resend has shipped a range of features, including Audiences and Broadcasts, which enable users to send both transactional and marketing emails from a single source of truth. The company also provides quickstart guides for a large number of languages and relies on Railway to help it scale efficiently. Zeno advises others to "buy a lot of coffee" before running a Launch Week, as it will be an intense week. Resend is not just building an email platform, but a communications platform that will allow developers to have more interesting ways to talk with their users in the future.