Send
Built to hand off to your developers
One key, one dashboard, and a sandbox to test in before anything goes near real customers. Drop-in SMTP or a clean REST API — whichever your stack already speaks.
Drop-in SMTP or API
Point your existing SMTP config at us, or call a clean REST API — your choice.
Sandbox mode
Test your sending flow against a fake inbox before it touches real customers.
Real-time delivery logs
See sent, delivered, opened and bounced events the moment they happen.
Sandbox first
Test against a fake inbox, not real customers
Send with a test key or a sandbox SMTP login and every message behaves exactly like production — except it lands in a Sandbox inbox to inspect, never at a real address.
- Separate keys for dev, staging and production
- Every message kept to inspect: HTML, headers, raw
- No accidental emails to real customers, ever
Observability
See every send as it happens
Every message is tracked from submission to inbox — sent, delivered, opened, bounced — streamed to your dashboard or your own webhook endpoint.
- Webhooks for delivered, bounced and opened
- Full history searchable by recipient or subject
- Alerts when bounce rate crosses a threshold
“Our old setup needed a developer just to add an inbox. This one doesn't — and the API is the cleanest I've integrated in years.”
Frequently asked
Do you support SMTP relay?
Yes — point your existing SMTP client config at our relay and it works with no code changes.
What does sandbox mode actually block?
Every send is validated like a live one, then lands in a Sandbox inbox you can inspect. Nothing leaves our servers for a real address.
Can I get delivery events via webhook?
Yes, configure an endpoint once and get sent/delivered/bounced/opened events pushed live.
Is there a sending rate limit?
Each plan has a default limit, visible in your dashboard and raised on request.
Ship your first email in minutes.
Grab an API key and send a test message right now.