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Relay

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

1 sources 562 stars Self-hosted AGPL-3.0
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Product snapshot

How the interface presents itself

Relay interface screenshot

Positioning

What this project is really offering

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About

Open-source email API designed for developers who want control over their email infrastructure. Built as a powerful alternative to AWS SES and Mailgun, offering both self-hosted and upcoming cloud solutions. Key Features: Self-Hosting Benefits: Pricing Options: Perfect for developers, indie hackers, and enterprises seeking reliable transactional email delivery with complete infrastructure control and industry-leading deliverability practices.

Highlights

The capabilities most worth remembering

01

Clean REST API

02

Automated deliverability

03

Real-time webhooks

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Multi-domain support

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Project isolation

06

Comprehensive logging

Evidence

What backs up the editorial summary

Primary source links

openalternative.co/hyvor-relay