Mailgun

freemium

API Key (HTTP Basic Auth)

✓ Available

Mailgun

SMS & Messaging · Email

Mailgun is a developer-focused transactional email API service that enables applications to send, receive, and track emails through a clean REST API or SMTP relay. Originally founded in 2010 and acquired by Sinch in 2021, Mailgun has built a reputation as the go-to email API for developers who value detailed logs, powerful inbound routing, and a separate email validation product that works hand-in-hand with the sending API. Nigeria is fully supported as a sending and receiving destination.

Best For

Developers needing reliable transactional email with powerful email validation, inbound routing, and detailed logs. Developer-focused platform with strong API and excellent email analytics.

Notes

Mailgun is a developer-focused transactional email API acquired by Sinch. Strong on email validation API (separate product), detailed logs, and developer tooling. Nigeria supported.

Technical Specs

  • Pricing:Free trial: 100 emails/day for 3 months. Paid from $15/month (50,000 emails). Nigeria supported.
  • Authentication:API Key (HTTP Basic Auth)
  • Rate Limit:Free: 100/day. Paid plans scale per tier.
  • Sandbox Mode:✓ Available

Key Highlights

  • Developer-first email API
  • Email validation API (separate)
  • Detailed email logs — 30 days
  • Inbound email routing
  • Mailing list management
  • SMTP and REST API
  • Sandbox domain for testing
  • Suppression list management

Required Access Documents

  • Mailgun AccountRequired
    Register at mailgun.com. Free trial requires credit card for verification. Domain authentication (DNS records: SPF, DKIM, DMARC) required before sending to real addresses. API key from dashboard.

Use Cases

  • Transactional Email for Nigerian Platform:Use Mailgun to send OTP emails, order confirmations, and account alerts from a Nigerian application with high deliverability, detailed per-email logs showing exactly what happened to each message.
  • Email Validation Before Sending:Use Mailgun's Email Validation API to validate Nigerian users' email addresses at registration — checking syntax, domain existence, and mailbox validity — before sending welcome emails, reducing bounces.
  • Inbound Email Processing for Nigerian App:Use Mailgun's inbound routing to receive and parse emails sent to your domain, forwarding parsed content (sender, subject, body, attachments) to a webhook in your Nigerian application for automated processing.
  • Developer Testing with Sandbox Domain:Use Mailgun's sandbox domain to test email sending during development of a Nigerian application without authenticating a real domain, allowing full API integration testing before production deployment.

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