# E22003 — LookupInvalidEmailAddress

The address to look up is not a valid email address.

- **HTTP status**: `422`
- **Type**: `validation_error`
- **Name**: `LookupInvalidEmailAddress`

## What to do

Send a bare address such as `aisha.khan@example.com`, with no display name and no angle brackets around it.

## Related

- [E22xxx — Number lookup](/docs/api/errors/E22xxx): 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`