public function sendCampaign($CampaignId)
    {
        $response = $this->mailjet->post(Resources::$CampaigndraftSend,
            ['id' => $CampaignId]);
        if (!$response->success()) {
            $this->throwError("CampaignDraftManager:sendCampaign failed",
                $response);
        }

        return $response->getData();
    }