Email and automation
Transactional email
Receipts, sign-in codes, password resets and alerts, sent from your own domain with one API call.
- POST /v1/send
- Idempotency-Key header
- Up to 10 attachments
- Status webhooks per message
Acme · receipts@acme.iocheck_circleDelivered · 42ms
Your receipt from Acme 🧾
Order #8921 · $49.00
One-time code · 8 4 2 9
POST /v1/send
200 OK
queued in 42ms
verified
99.98% inbox
SPF · DKIM · DMARC
- Retries and idempotency keysSend an Idempotency-Key header and a repeated request returns the original message instead of sending it twice. Failed handoffs are retried in the background.
- Templates or your own HTMLSend a saved template by name with variables, or pass the HTML yourself. Up to 10 attachments, 20 MB in total.
- Signed from your domainWe give you the DKIM and SPF records to add, and mail goes out signed for your domain.
Try it on the free plan
The free plan includes 5,000 emails a month and one sending domain.
No card needed to start.