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After signing up, complete the setup wizard to configure your webhook URL and retrieve your API key. You need both before you can send and receive email.

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Step 1: Webhook URL

OpenMail sends inbound email events to your webhook URL. Your application must expose an endpoint to receive them.
  1. Go to the Dashboard and sign in.
  2. In the setup wizard, enter your webhook URL (e.g. https://your-app.com/webhooks/openmail).
  3. Click Save.
For local development, use webhook.site to get a temporary URL for testing.
See the Webhooks guide for payload format, signature verification, and best practices.

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Step 2: API key

Your API key and base URL are shown in the wizard. Copy them and store them securely.
  1. Copy your API key — you won’t see the full key again after setup.
  2. Copy your API base URL — use this for all API requests.
  3. Click I’ve saved this to continue.

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Step 3: Done

You’re ready to integrate. Create inboxes via the API or from the dashboard, then follow the Quickstart to send your first email.

Quickstart

Send and receive email in 5 minutes.

Webhooks

Payload format and signature verification.