Help! COX IP is blacklisted for SPAM and is affecting my email account.
Had some email issues recently, and got our web host (VeeroTech) to dig into the problem. They confirmed that everything was perfectly fine on our end of things, and found that our IP (assigned by COX) is blacklisted by SORBS DUHL and Spamhaus ZEN. They said it was related to COX's DNS servers or filtering. I do not use our email account for any sort of mailing lists or mass-mailers or anything like that at all. Specifically, our hosting support said:
"I cannot say, it's the IP provided by your ISP, not us or our IP. you would need to contact your ISP about that. So we're clear on this part, the IP that is blacklisted is not related to your hosting, it's the one assigned to you from your ISP and is being blacklisted. Your test email came through right to our inbox, it did not go to the junk folder. Both the SPF and DKIM pass with no errors, so it's my best guess that this is likely an issue related to your ISP."
Can someone please assist? I will provide our IP if necessary, but this all points to an issue with COX and is not something we can address. It must be addressed by COX.