I just got off the phone with EV1.net tech support. Do I have a server with EV1.net? No. But I did about 2 years ago.
The reason I called EV1 is because I had been receiving complaints of spam and hacking attempts coming from my servers. But I couldn’t find any evidence of such.
Finally, I found out why. The person who was experiencing the spam/hacking attempts was getting them from a certain IP: 216.127.XXX.137. And when they did a reverse DNS on the IP, it came up with one of my domain names. So they contacted me!
I didn’t recognize the IP address in question, it definately was not one of mine. So I did a reverse DNS/IP whois on the domain, and lo and behold, it belongs to EV1! Apparently, when I cancelled my server with them 2 years ago, they didn’t remove their reverse DNS entries. So the new owner of the server was causing trouble, but my domain still showed in the reverse DNS.
EV1 is now removing those reverse DNS records, and I commend their support, as it was a rather painless phonecall to make to get everything cleared up.
So, the lesson to be learned here, if you have ever had servers somewhere, make sure that they remove the reverse DNS records after you leave their services!