One platform for OTP and transactional email
Every service below runs on the domain you connect to your account, authenticated and monitored from a single dashboard.
OTP Email API
Purpose-built for time-sensitive codes: login verification, signup confirmation, and payment authorization.
- Priority send queue for low-latency delivery
- Ready-made OTP templates, fully brandable
- Configurable code expiry and single-use handling
Transactional Email API
Receipts, password resets, invitations, shipping updates, and account notifications triggered by your app.
- Dynamic templates with merge variables
- Attachments and custom HTML support
- Per-message and per-project sending history
SMTP relay & REST API
Integrate the way that fits your stack — drop-in SMTP credentials for existing mail libraries, or a REST API for full control.
- SMTP relay compatible with any mail library
- JSON REST API with per-account keys
- Idempotent sends with request IDs
Domain authentication
Connect your domain and we generate the SPF, DKIM, and verification records you need for it to be trusted.
- One-click DNS record generation
- Ownership verification before sending is enabled
- Multiple domains per account
Delivery analytics & logs
Every message is tracked from queue to inbox, so you can debug delivery issues without guesswork.
- Queued, sent, delivered, bounced, opened events
- Searchable message history
- Exportable delivery reports
Webhooks & event tracking
Push delivery, bounce, and engagement events straight to your backend the moment they happen.
- Signed webhook payloads
- Automatic retries on failed delivery
- Per-event endpoint configuration
Infrastructure that takes deliverability seriously
Connecting your domain means every message is authenticated as coming from you — not a shared, unrelated sender.
Monitored sending queues
Send volume and bounce rates are watched continuously to protect your domain reputation.
Scoped API access
Each account gets a unique key generated only once your email is verified.
Template & API parity
Anything you can send through the dashboard, you can trigger identically through the API.
Pick the service you need, or use all of them
One account gives you OTP, transactional email, SMTP relay, and analytics together.