From Computer Tyme Support Wiki
This IP address from Microsoft is a retaliatory black listing because Microsoft has our IP space on their black lists. I have contacted them over and over and these people are fucking morons and there's no one I can communicate with there that has any sense. We are a spam filtering company and we are NOT SPAMMERS. So in frustration with getting no where I am trying to get the attention of someone there who will delists these IP ranges:
Marc Perkel firstname.lastname@example.org
Just as soon as you delist us we will delist you.