I'm the CTO of a web company and we recently purchased a domain intended for use on a new product. After a short trial release, we found that the domain was filtered by a handful of European ISPs. With some research, and limited communication with abuse@, we are confidant that one of the sources of the block is Akamai's Nomium security product. We've been unable to get any kind of response from them and seem to have no avenues to get through. Anyone have any suggestions on how to get through?