Mailgun: The Most Relied Upon Email Platform for Growing Businesses A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java. Easy SMTP integration and a simple, RESTful API abstracts away the messy details of sending transactional or bulk email. Scale quickly, whether you need to send 10 or 10 million emails. Searchable logs mean you always know what is happening to your email while tags make it easy to A/B test and report on your data, all via our webhooks.