Testing

Every account has a sandbox address, <name>@sandbox.duta.indra.sh, for testing. Mail from it:

• reaches only up to three recipients who confirmed they want your test mail,
• is limited to 10 a day with no attachments,
• carries a short footer saying it came from a sandbox,
• never touches your own domains or their reputation.

On the Free plan the sandbox is the only way to send. On a paid plan it stays available for testing: send from the sandbox address and the request goes through the sandbox, with its own daily count, not your monthly allowance.

Confirming a recipient

Add a recipient in the dashboard. Duta emails them a link, and the address receives sandbox mail only after they press Confirm on that page. A recipient can also block all sandbox mail from every account.

Test in your own code

• Use a separate API key for tests, so you can revoke it without touching production.
• Use an Idempotency-Key on sends your tests retry.
• Point a webhook at a tunnel to your machine and use POST /v1/webhooks/{id}/test to exercise your handler.