Email infrastructure built for developers.
A clean REST API, SMTP relay, webhooks, and SDKs in five languages. Utobo Mail does the deliverability work so you can focus on your product.
Why developers choose Utobo Mail
Clean API
One POST request sends an email. The response tells you if it worked. Errors are descriptive. Auth is a single header.
From $9 a month
50,000 emails a month for $9. Competitors charge $20 for the same volume. We charge less and give you more — AI editor and webhooks included.
Webhooks for everything
Delivered. Opened. Clicked. Bounced. Complained. Every event hits your endpoint in real time.
Custom domains
Send from your own domain with full DKIM and SPF authentication. The setup wizard walks you through every DNS record.
No vendor lock-in
The @utobo-mail/sdk is open source. The API follows standard conventions. Switching is straightforward if you ever need to.
Built on AWS SES
Reliability you can audit. Scales from your first email to hundreds of millions.
What's in the box
- REST API with JSON (POST /emails, GET /emails/:id)
- SMTP relay — smtp.mail.utobo.com port 587
- Webhooks for delivered, opened, clicked, bounced, complained, unsubscribed
- Custom sending domain + DKIM / SPF setup wizard
- Delivery logs with full event history
- Hard and soft bounce handling with automatic suppression
- Email templates — save and render via API with dynamic variables
- AI email writer and subject optimiser included
- SDKs: Node.js, Python, Go, PHP, Ruby
- API key management with scoped permissions
Quickstart
npm install @utobo-mail/sdk
import { UtoboMail } from "@utobo-mail/sdk";
const client = new UtoboMail("av_live_...");
await client.emails.send({ from, to, subject, html });Start at $9/mo — 10,000 emails, all features.
No restrictions on API calls.