Active email deliverability monitoring that tests every 5 minutes. Know the moment something breaks — and prove when it's not you.
Built by email admins, for email admins.
Real emails sent every 5 minutes to verify deliverability — not passive guesswork.
Prove your infrastructure isn't the problem. Fast. With evidence.
Your monitoring stack runs in its own container. No noisy neighbors.
Monitor all your domains from one dashboard. Add more as you grow.
Point your DNS at our test addresses. Takes 2 minutes.
Every 5 minutes, we send authenticated test messages through major providers.
The moment deliverability drops, you know. Slack, email, webhook — your choice.
When someone blames your mail server, show them the receipts.
Start free. Scale as you grow.
14-day free trial. No credit card required.