I work in a small office for a Production company as part of my job... two hours ago, all our Mail apps stopped sending e-mail because our ISP number was blacklisted by Spamhaus.org. Who are these people? We have three Macs and 4 PC's and I assure you that none of us are Spammers. The PC users are very careful about security updates and are constantly updating their defenses. Has this happened to anyone else here? I tried to get ourselves removed, but it's been nearly two hours and nothing has happened. Those bastards are killing our productivity! Even the webmail equivalent will not work. Who made these guys the CIA of the Internet?