Mailgun

Mailgun is an email delivery platform designed for developers and businesses that need reliable, scalable transactional and marketing email infrastructure. It provides APIs and tools to send, receive, and track emails programmatically, helping teams integrate email functionality directly into applications, websites, and backend services. The platform focuses on deliverability, performance, and detailed analytics to support high-volume and business-critical email use cases.

Mailgun offers RESTful APIs, SMTP relay, and SDKs for common programming languages, making it straightforward to integrate with existing systems. It includes advanced deliverability tools such as IP reputation management, sender authentication (SPF, DKIM, DMARC), and inbox placement monitoring to improve the chances that emails reach recipients’ primary inboxes. The platform provides powerful email parsing for inbound messages, detailed event-level logs, open and click tracking, and webhook-based notifications for bounces, complaints, and deliveries. Additional capabilities include email validation to reduce invalid addresses, template management, A/B testing, and support for multi-domain configurations and subaccounts.