# recipient_not_allowed

**HTTP status:** 422 (Unprocessable)

**Title:** Recipient not allowed

## Cause

This organization cannot send email to that address.

## How to fix it

Read `detail` in the response: it says what to change. Do not retry the same request unchanged.

Every error carries `requestId` and the `Request-Id` header. Send it when you write to support.

[All error codes](/errors)