I’m happy to look into this. Could you send an email to support@render.com with more details about how you’re testing?
It would be helpful to know:
Dashboard URL of the service you’re sending an outbound request from; for example: https://dashboard.render.com/web/srv-tki65b1fcv6uvd9goa90
Any details you can share about the test itself; for example: “I’m testing by sending an HTTP request to a server outside of Render, and checking the log from that server.”)