stmp Get started

Pricing

A little room to test. A lot to inspect.

Start with stmp early access. Create test inboxes, inspect every message, and bring email checks into your workflow.

Get started

Start now

Early access

The full feature set, while managed plans take shape.

  • Unlimited domains and accounts
  • SMTP inbound + REST API
  • Message inspection: headers, MIME, raw source
  • SPF / DKIM / DMARC verdicts
  • Catch-all and plus addressing
  • Configurable retention + per-message expiry
  • OpenAPI spec and Swagger UI
  • Real-time updates
Start testing

Teams & enterprises

Coming soon

Managed instances, collaboration, and support.

  • Managed infrastructure
  • Team workspaces
  • Backups, updates, and uptime handled
  • Priority support
Learn more

Capabilities

Included from your first inbox.

Custom domains

Disposable accounts

Message inspection

SPF / DKIM / DMARC

Retention controls

REST API + OpenAPI

Catch-all & aliasing

Real-time updates

Every account includes the full feature set — no metering. Additional plans and managed infrastructure are on the roadmap.