A fake SMTP server for testing outbound email
Point your app at our SMTP endpoint, send anything — the mail lands in a private mailbox you can read here, over IMAP or POP3, or through the REST API. Simulate bounces and complaints, share it with teammates — no real email leaves the building.
Any recipient works
Authenticate once, then send to any address — everything is captured.
IMAP + POP3 access
Read the inbox with any mail client — same credentials, IMAP IDLE push.
STARTTLS
Opportunistic STARTTLS on SMTP, IMAP and POP3 — exercise the TLS path.
REST API for CI
Token-scoped read-only endpoint — poll for mail from your test suite.
Delivery simulation
bounce/complaint/reject/drop recipients + SES-style SNS webhooks.
Shareable, inspectable
Team access by email; rendered HTML, plain text and full raw MIME.
Free with a Google or GitHub account.
How we compare to Mailtrap, Mailisk, Mailloop & MailSlurp →