Just fixed another longstanding pet peeve of mine: I finally added classmates.com and cmates.com to my email server’s blacklist. How these guys have managed to stay in business for so long is beyond. They don’t even try to hide the fact that they’re spammers. They even sign all their messages with a valid domain keys signature!

DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/simple; d=classmates.com;
     s=prod20081009.key.pem; t=1248374724; bh=PH2W8/WWF0Eq5UeHS7xrebJL9l
     g=; h=Date:from:to:Subject:Mime-Version:Content-Type:Message-Id;
     b=IMICZJvpMfW9pEWFSGX9gnScTOsQb0sI3edRgw7jHekqAK8OuJoFkmGBYcLC8IhpD
     mnoepYufrgbzzCEUWiYwpqCNSJ7PkqiyDs5n9upo4qtyEa29vgv6rXb39vQ+FjymKV+
     E39Tuzsm2MuXTTO+e0C7LlOozzqnSfh30yovIOI=

Gotta love the sheer audacity of it..