Hyvor Relay icon
Hyvor Relay icon

Hyvor Relay

Hyvor Relay is a self-hosted, open-source Email API and a modern alternative to AWS SES and Mailgun. Self-host it for free with full control, or join the waitlist for our upcoming cloud.

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  • Self-Hosted
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  •  899 Stars
  •  63 Forks
  •  52 Open Issues
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Hyvor Relay was added to AlternativeTo by Ishini Senanayake on and this page was last updated .
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What is Hyvor Relay?

Hyvor Relay is an open-source email API designed for developers who demand control and transparency over their email infrastructure. Built as a powerful alternative to AWS SES and Mailgun, Hyvor Relay is perfect for reliable transactional email delivery. We offer both self-hosted (free forever) and upcoming cloud solutions, eliminating vendor lock-in and providing massive cost savings at scale.

Key Features:

  • Self-Hosted & Open Source: Deploy anywhere with the AGPL-3.0 license.
  • Automated Deliverability: Built-in DNS server automates DKIM, SPF, bounce handling, and suppression management.
  • Clean REST API: Easily send HTML/plain text emails with attachments and custom headers.
  • Scalability & Monitoring: Horizontal scaling via Docker Swarm and native integration with Prometheus/Grafana.
  • Project Isolation: Multi-domain support with separate API keys, domains, and webhooks per project