[Looking for beta testers] Hyvor Relay: open-source, self-hosted email API for developers

General
1

Hey,

We’re opening up beta testing for our new self-hosted, open-source email API, Hyvor Relay. It’s an alternative to services like AWS SES, SendGrid, and Postmark. If you’ve ever wanted more control over your email infrastructure (without vendor lock-in), this is your chance to try it out early and help shape its future.

Currently, Hyvor Relay is only available for self-hosting via Docker. A cloud version is planned for next year, but not fully developed yet. So, we are looking for self-hosting enthusiasts for the beta test.

We’d love your feedback on setup, features, and performance. Your input will directly guide improvements before public release.

Start Hosting: https://relay.hyvor.com/hosting
Github: https://github.com/hyvor/relay

2

This looks great. I will consider deploying it on our cloud this month. Thank you for making it!

1 Like
3

Great to see this project, as I am grappling Mautic’s lack of PostgreSQL and the PostgreSQL attempt is only slated for 7.1 target Q1/Q2 ‘26, I noticed Hyvor Relay, and it ticked the boxes… except:

  1. IPv6 support?
  • I’m actually are looking for a Mailgun replacement ‘cuase I’m deploying IPv6-only servers/VMs/containers.
  • it comes to Docker that I know isn’t… well… IPv6 friendly, thus:
  1. Possible to setup up WITHOUT Docker?
  • Reason: I would’ve liked to deploy it on LXCs, and well… you can but not good to deploy containers inside containers!
4
  1. IPv6 support

Sending emails via IPv6 is not supported, mainly since most of the popular email providers do not support it reliably (except Gmail, maybe)

  1. Possible to setup up WITHOUT Docker?

We haven’t looked into other options so far. Depending on the demand, we might look into others as well.

5

email RECEIVING on IPv6 ?
Ie. for the hosts sending transactional emails?

6

for everything, only IPv4 is supported at the moment. There is no reason we cannot support IPv6 for incoming mails, DNS server, etc. It might be something we can work on in the future.