Email Testing for Developers
Test emails like you debug code. SMTP in, IMAP/API out. Inspect headers, MIME and body. No servers, no setup, no cleanup.
SMTP, IMAP, POP3
Your existing mail clients work out of the box. No vendor SDK, no lock-in.
- Point an MX record, create an account, start testing. No setup wizard, no 50-page guide.
- Accounts, messages, domains, tokens. API-first.
- Headers, MIME tree, raw RFC 5322. See exactly what arrived.

After delivery
Check what arrived in the UI or wire it into CI.
- HTML preview, text, headers, raw source. Plus SPF/DKIM/DMARC results via API.
- Standard SMTP - any CI that sends email works. GitHub Actions, Jenkins, GitLab CI, whatever you use.
- No TTL, no auto-purge. Emails stay until you delete them.

Features
Custom Domains
Bring your own domains. Add as many as you need.
Unlimited Accounts
As many inboxes as you need. No caps.
Unlimited Messages
No limits on sent or received messages.
Sandboxed
Every email stays in the sandbox. Nothing reaches a real recipient.
SPF, DKIM, DMARC
SPF, DKIM, DMARC checks on every inbound message. Results in the API.
Persistent Storage
Every email stored until you delete it. Nothing expires.
REST API
Accounts, messages, domains, tokens. All over REST.
Real-time Updates
New messages pushed via SSE. No polling.
Catch-All & Aliasing
Wildcard accounts and plus-sign addressing. Capture everything or route by tag.
Start testing
Sign up, add a domain, receive your first test email.