Well folks, I have tried to get off this list by sending messages to
com which seemed to be maintained by MSen.com at
some point which explains why things are broken.
I don't see any other way than start bouncing the mail back for getting
off the list.
A company involved in firewalls should be able to find a better internet
provider to run their list and even help them protect their machines
with firewalls. Something isn't working in that picture ;)