`session_host_mismatch`

HTTP 401authentication_error

A recipient session was used on another address than the one it started on. Open the link again.

Handling it

Fix the request and send it again. message says what is wrong, and param names the parameter where there is one. Keep the request_id: it lets Parasend find the request.

The error, as the API returns it

{
  "error": {
    "type": "authentication_error",
    "code": "session_host_mismatch",
    "message": "A recipient session was used on another address than the one it started on. Open the link again.",
    "param": null,
    "request_id": "req_5e69684dc3de68bf8651a712"
  }
}