Fetchmail does not use the indicated protocol
When you run fetchmail from the commandline, by default it will use the /.fetchmailrc file and nothing else.
To manually test the configuration file "fetchmailrc" in the folder /etc you need to use the -f <pathname> or --fetchmailrc <pathname> option.
In other words test with
fetchmail -d0 -vk --fetchmailrc /etc/fetchmailrc