HivsyA small integration surface
Submit HTML or text email over HTTPS, attach your own message metadata, and use idempotency to make application retries safe.
Transactional email API
Transactional email your application can explain
Send product and account email through one REST API, then follow every accepted, deferred, delivered, bounced, and complained message through durable delivery traces and signed webhooks.
- A focused REST API with domain-scoped live and test keys
- Durable retries for temporary receiving-server failures
- Exact provider responses preserved for delivery debugging
Built for the complete workflow
Durable retries
Temporary SMTP failures stay visible while Hivsy retries them. Permanent rejections retain the stage, status, and complete response.
Signed webhooks
Receive lifecycle events at your endpoint and verify their signatures before updating your application state.
How it works
- 01
Authenticate a sending domain
Publish the DNS records shown by Hivsy and verify the domain from the dashboard.
- 02
Send through the email API
Call POST /api/emails with a domain-scoped key and your message content.
- 03
Observe the complete outcome
Use the dashboard, API, or signed lifecycle webhooks to follow delivery and diagnose failures.