AUTHENTICATION_FAILED

Failed to Authenticate

401 UNAUTHORIZED

ACCESS_DENIED

Access denied

403 FORBIDDEN

INVALID_TYPE_OF_ARGUMENT

Provided argument is of invalid type

400 BAD_REQUEST

MAILING_LIST_NOT_FOUND

Mailing list does not exist

404 NOT_FOUND

BAD_REQUEST

Bad Request

400 BAD_REQUEST

UNMAPPED_REQUEST_URL

The request URL is not mapped to an endpoint

404 NOT_FOUND

METHOD_NOT_ALLOWED

Method not allowed

405 METHOD_NOT_ALLOWED

UNKNOWN_ERROR

Unknown Error

500 INTERNAL_SERVER_ERROR