have you asked them to de-list you?
We are a small company competing against two of the biggest corporations on the internet, Amazon and Ebay. We try to send newsletters to our users and then always blacklisted by Sorbs despite following all required and generally accepted protocols and standards.
Whether they intend to be doing so or not, I can not say, Sorbs is assisting the big corporations stifle competition. If there is anyone else out there in the same situation we find ourselves in, or if you have been in this situation, please contact me at firstname.lastname@example.org to inform me of whatever you have done successfully or to join together to seek some sort of legal remedy.
Also, I would be interested in receiving contact from any journalists who would find this worth shedding light on. I believe Google/Bing search results are also designed, possibly purposefully, to favor big corporations over struggling competitors. Let's join together and do something about it. -Roger Raffee