[cmdeploy test] FAILED test_hide_senders_ip_address (solved)

Hello all!

I am new to this forum as well as to selfhosting a Chatmail Relay. Trying the second one I am running into the following error when using cmdeploy test:

\[gw3\] \[ 22%\] FAILED cmdeploy/src/cmdeploy/tests/online/test_2_deltachat.py::test_hide_senders_ip_address

followed by a very long console output.

The reason might be:
urllib3.exceptions.NewConnectionError: HTTPConnection(host='icanhazip.com', port=80): Failed to establish a new connection: \[Errno 111\] Connection refused

I did a quick test with curl --ipv4 http://icanhazip.com and curl --ipv6 http://icanhazip.com which where both successful.

Where and how can I start debugging this problem?

THX
Tim

Yes .. well .. turned out be a problem on my site. My Pi-hole blocked icanhazip.com. For whatever reason. I tested curl on the server where - surprise surprise - no Pi-hole is blocking anything. Everything is working now.