Interesting! Generally, since the API should be accessible and must receive this header, I suspect this might be related to the endpoint you are trying to send the logs to. I see that you are using http-intake.logs.datadoghq.eu/api/v2/logs It's worth trying to send the requests to https://http-intake.logs.datadoghq.com/api/v2/logs ( .com instead of .eu ) Let me know if it works :)