# E04010 — OnboardingSendLimitExceeded

The daily send limit for the shared onboarding domain has been reached. Verify your own sending domain to remove the limit.

- **HTTP status**: `429`
- **Type**: `rate_limit_error`
- **Name**: `OnboardingSendLimitExceeded`

## What to do

Verify your own sending domain to lift the onboarding send limit, then retry.

Operations that resolve this:

- [List sending domains](/docs/api/reference/list-domains)
- [Add a sending domain](/docs/api/reference/create-domain)
- [Trigger domain verification](/docs/api/reference/verify-domain)

## Related

- [Rate limits](/docs/guides/rate-limits): groups, headers, and backoff guidance
- [E04xxx — Email sending & delivery](/docs/api/errors/E04xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`