A major network outage has took out some of our backend servers. We are working hard to restore service, but as of now there is no ETA. Hold onto your butts!
The cause stems from "anti-spam" RBL UCEPROTECT blacklisting port scanners, which has caused quite a fuss at one of our datacenters. Our understanding is that any internet-wide scan, including for Minecraft servers, is enough to be listed in UCEPROTECT.
There is a $1000 bounty for anyone who can get UCEPROTECT removed from a major email provider, so our datacenter's customers stop complaining when one man in Germany blocks 1,000,000 IP addresses for something that has nothing to do with e-mail. Read more on Twitter.