I have recently had my working relationship with a colleague in the Ukraine completely disrupted by Spamcop cancelling all emails from him to my server here in Canada. I quote a pertinent part of Spamcop's rationale here:
"Before you start getting upset just remember what brought you here. Your
email was blocked, not by Spamcop but the ISP of the person you were sending
your email to. Spamcop has no control over what they do with their servers."
This is a disingenuous argument for the simple reason that communication is being cancelled between clients of servers, without notice given. Without Spamcop blockage, innocent users like myself and my collegue would not have our right to communicate violated in the name of your "war on spam." Your service I believe will backfire insofar as people like myself on the receiving end have no recourse in dealing with a server in the Ukraine or wherever... what I have been active doing is contacting my server strongly urging them to drop your services as my right to communicate with a colleague, someone I work with on the internet as a fellow designer, is being interfered with, and as a corollary, my right to make a living using the net is being damaged by your interference. I urge all people in my situation on the receiving end of blocked emails returned to someone emailing you indicating they were "spam Blocked" by Spamcop, to contact their servers and point out the obvious: Spamcop's service and rationale for blockage causes a far more serious violation of individual rights than the inconvenience of spam. Fight spam some other way and leave the right to communicate untouched. This cannot be tolerated on the internet.