I have spent a fair bit of time in these here forum following the alphacabbage and his seemingly extraordinary knowledge of exim4, and eventually decided to try out this old blacklisting thing to try and quell the spam flow as much as I can.
So I created and edited the file /etc/exim4/blacklist/by_hostname and then after waiting a while and not seeing any effect, attempted a service exim4 reload, but still no dice.
Am I doing something wrong? Perhaps there is a symbiosis based config location that I’m not seeing.
Thanks in advance