The email API for developers - simple, reliable, scalable
Mailgun is a developer-friendly email API platform that makes it easy to send, receive, and track emails. With a focus on simplicity and reliability, Mailgun is the first choice for developers worldwide.
Over 200,000 developers use Mailgun for their email infrastructure, from startups to Fortune 500 companies.
Simple REST API and cURL support
Integrated email validation and parsing
Ready to use in minutes
RESTful API for email sending
SMTP server for existing apps
Real-time event tracking
Process incoming emails
Made by developers for developers
One cURL command is enough for your first email
Comprehensive logs and event tracking
Detailed statistics and reports
Trusted by developers worldwide
Everything you need to know about implementing Mailgun's developer-friendly email API
Mailgun was built by developers for developers, with a focus on simplicity and powerful features. The API is RESTful and intuitive, requiring just a single cURL command to send your first email. Comprehensive SDKs are available for all major programming languages, and the interactive API documentation allows you to test endpoints directly from the browser.
Advanced features include powerful routing and filtering capabilities, allowing you to process incoming emails, create custom forwarding rules, and build sophisticated email workflows. The platform provides detailed logs, webhooks for real-time event tracking, and built-in email validation to clean your lists before sending.
Developer tools include sandbox environments for testing, CLI tools for managing domains and settings, comprehensive error handling with detailed status codes, and flexible authentication options. The platform's design philosophy prioritizes developer experience while maintaining enterprise-grade reliability and deliverability.
Mailgun offers flexible pay-as-you-go pricing starting with a generous free tier of 5,000 emails per month for the first three months, then 1,000 emails per month ongoing. Paid plans start at $35/month for 50,000 emails, with volume discounts available for higher usage levels.
The pricing model is transparent with no hidden fees or surprise charges. Additional features like dedicated IP addresses, enhanced support, and advanced analytics are available as add-ons. Volume discounts apply automatically as your usage grows, making it cost-effective for businesses of all sizes.
Enterprise customers can access custom pricing with dedicated account management, SLA guarantees, and priority support. The platform's efficiency and deliverability often result in lower total costs compared to alternatives when considering factors like delivery rates, support quality, and development time savings.
Mailgun excels at inbound email processing with powerful routing and filtering capabilities. You can create custom routes to forward emails to different endpoints, parse incoming emails into structured data, and build sophisticated email workflows. This makes it ideal for applications that need to process customer replies, support tickets, or automated email responses.
Advanced features include email validation API for cleaning lists before sending, detailed analytics and tracking, A/B testing capabilities, and flexible template systems. The platform provides comprehensive webhook support for real-time event tracking, allowing you to monitor deliveries, opens, clicks, bounces, and complaints as they happen.
Security features include TLS encryption, DKIM signing, SPF and DMARC support, and comprehensive logging for audit purposes. The platform also offers sophisticated suppression management, allowing you to maintain clean sending lists and comply with anti-spam regulations automatically.
Mailgun maintains high deliverability through dedicated infrastructure, proactive reputation management, and industry-leading best practices. The platform uses sophisticated algorithms to optimize sending patterns, automatically manages IP warming for new domains, and provides detailed deliverability insights to help you identify and resolve issues quickly.
The platform includes built-in email validation to prevent sending to invalid addresses, comprehensive bounce and complaint handling, and automatic suppression list management. Mailgun's deliverability team actively monitors sender reputation and provides guidance to maintain optimal inbox placement rates.
Technical features include automatic DKIM signing, SPF record guidance, DMARC support, and dedicated IP options for high-volume senders. The platform's architecture ensures consistent delivery speeds and maintains strong relationships with major ISPs, resulting in industry-leading deliverability rates for properly configured accounts.
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