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Top Free Alternatives to Mailgun

Stop paying expensive subscriptions for Email Marketing tools. Discover the best free and open-source replacements for Mailgun.

Why switch from Mailgun?

Mailgun has raised its base pricing and removed legacy free tiers. Switching to open-source mail delivery platforms allows you to route transactional emails through your own server IPs with no volume constraints.

Postal Delivery

Free / Open Source
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Complete SMTP server and mail delivery system. Alternative to Mailgun and SendGrid.

Key Features

  • SMTP & HTTP delivery APIs
  • IP pooling & reputation management
  • Click and open tracking
  • Spam analysis integrations

Pros

  • + Fully featured interface for managing multiple domains
  • + Very high performance
  • + Open source with active support

Cons

  • - Requires advanced network and DNS skills to avoid spam folders
  • - Requires strict IP monitoring