People sending us mail get rejected with a spamcop warning. Thing is, we don't use spamcop nor do they.
We have a SBS 2003 server with no spam filter because it really isn't a problem with us. More and more of our clients are getting bouncebacks with Spamcop warnings. I called our ISP (XO communications) and they claim they do not use spamcop.
I also noticed that many (not all) Gmail addresses are getting bounced. This is really starting to affect our business, and right now anti-spam is a bigger problem than spam.
Why is this email getting blocked?