def METHOD_NAME(mailoutbox, mocker, user):
    """Assert that a UserExportBlockedException is raised if the inquiry result is unknown"""
    mock_api = mocker.patch("authentication.pipeline.compliance.api")
    mock_api.verify_user_with_exports.return_value = mocker.Mock(
        is_denied=False, is_unknown=True
    )
    with pytest.raises(AuthException):
        compliance.verify_exports_compliance(None, None, user=user)
    mock_api.verify_user_with_exports.assert_called_once_with(user)
    assert len(mailoutbox) == 0