I got a reply to one of my reports just now, and it included the message sent by spam Cop to the service provider. That email included a link to https://www.spamcop.net/mky-proxies.html which redirects to http://spamlinks.net/proxy-fix.htm which redirects to which redirects to https://spamlinks.net/proxy-fix.htm which is a 404 error. Meanwhile the homepage for the domain it sits on is … not good.
You should probably update the URL.