Hyvor Relay
relay.hyvor.com
Spec sheet
- Product
- Hyvor Relay is an open-source, self-hostable email API designed for developers.Read 3 Oct 2026 · relay.hyvor.com
- Deployment
- Self-hosting requires PostgreSQL and uses Docker Compose or Docker Swarm; the guide describes single-server and multi-server deployments.Read 3 Oct 2026 · relay.hyvor.com
- Free plan
- YesRead 23 Sep 2026 · relay.hyvor.com
- Integrations
- The self-hosting guide lists built-in Prometheus, Grafana, and Alertmanager integrations for monitoring and observability.Read 3 Oct 2026 · relay.hyvor.com
- Security
- The hosting documentation says its HTTP server has built-in application-layer rate limiting and recommends cloud-provider DDoS protection for network-layer attacks.Read 3 Oct 2026 · relay.hyvor.com
- License
- The self-hosted product is licensed under AGPL-3.0, and enterprise licensing changes the terms and support options while retaining the same features.Read 3 Oct 2026 · relay.hyvor.com
- Headquarters
- Paris, FranceRead 19 Oct 2026 · relay.hyvor.com
- Authentication
- Relay requires OpenID Connect (OIDC) for authentication and does not include its own login or signup system.Read 3 Oct 2026 · relay.hyvor.com
- Automation
- The scope-based REST API can automate domain setup, suppressions, API keys, and webhooks.Read 3 Oct 2026 · relay.hyvor.com
- Delivery handling
- Relay manages bounces, complaints, and suppressions, and provides searchable delivery logs with 30 days of retention.Read 3 Oct 2026 · relay.hyvor.com
- Email sending
- Its idempotent REST API supports HTML and plain text, attachments, custom headers, and multiple recipients.Read 3 Oct 2026 · relay.hyvor.com
- Email types
- The getting-started guide says each project sends either transactional or distributional email, using separate IP pools to maintain reputation separately.Read 3 Oct 2026 · relay.hyvor.com
- Maker and location
- HYVOR says it was founded in 2020 and lists its address as Paris, France.Read 3 Oct 2026 · hyvor.com
- Monthly send limit
- 300000Read 23 Sep 2026 · relay.hyvor.com
- Newsletter limitation
- Relay does not include built-in newsletter management features.Read 3 Oct 2026 · relay.hyvor.com
- Projects
- Projects organize domains, API keys, and webhooks, and a project can send either transactional or distributional email, not both.Read 3 Oct 2026 · relay.hyvor.com
- Webhooks
- Real-time event webhooks report deliveries, bounces, domain verifications, and other events.Read 3 Oct 2026 · relay.hyvor.com
Plans and prices
Enterprise License €10,000 a year Starting at €10,000/year; tailored pricing No AGPL-3.0 obligations · volume-based pricing · enterprise support · SLA options Read 3 Oct 2026 · relay.hyvor.com
Cloud Standard €30 a month €30/month*; pricing estimated and will be finalized at launch 300,000 emails/month included · €1 per additional 10,000 emails · priority support · managed deliverability · SLA and uptime guarantee Read 3 Oct 2026 · relay.hyvor.com
Self-Hosted Open-Source Free Free forever Unlimited usage · all features included · AGPL-3.0 obligations · community support Read 3 Oct 2026 · relay.hyvor.com
Where Specifiction places it
- Transactional Email Software#6 of 418.7
- Email APIs#5 of 318.6
- Transactional email services#14 of 418.5
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