Our messages to verizon.com recently starting being blocked by Verizon's online anti-spam system. I submitted a whitelist request via http://www.verizon.net/whitelist and we were rejected due to "Your IP has been blocked because of spam issues or because your ISP indicates that it is dynamically assigned" Our IP addres is not dynamically assigned and we do not send out unsolicited email. Our reverse DNS entries are correct, we use a 1024 bit DMIK, our SPF records are correct and http://mxtoolbox.com/ reports that we not not listed on any of the 87 blacklists that they check.
How do we get removed from Verizon's anti-spam system?