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Mailgun is an email automation service created to help developers send, receive, and track emails through a single API integration. It ensures that transactional messages (e.g., confirmation emails, shipping notifications) reach the recipient's inbox. The platform boasts advanced features such as analytics for tracking user interactions with email content and delivery optimization tools like dedicated IP addresses for improved reputation management. In addition to these core functions, Mailgun offers security measures to combat spam and phishing activities by implementing DKIM (DomainKeys Identified Mail) and SPF (Sender Policy Framework) records validation systems.