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Dev tools · December 2, 2025

Hyvor Relay

Self-Hosted Email API for Developers

Hyvor Relay launched on December 2, 2025 with 13 votes, #712 of 11,628 launches that month and more than 75% of that year's launches.

What it does

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.

Open-Source Email API for Developers. Self-hosted Alternative to SES, Mailgun, SendGrid.

Read our self-hosted licensing page for more insights about when to choose an Enterprise license. In addition, Hyvor Relay has extensive documentation that teaches you many underlying concepts of SMTP and email deliverability. In short, Hyvor Relay does most of the heavy lifting for you to ensure your emails reach the inbox. However, ultimate deliverability also depends on factors such as email content, recipient engagement, domain age and reputation, etc., which are outside the scope of any email sending service. For more tips on improving email deliverability, check out the Deliverabilityfrom relay.hyvor.com

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