Domains blocked by xFi Advanced Security
Some of our domains are currently being blocked by xFi Advanced Security. These are 18 domains which include click-tracking, order form and unsubscribe domains but also public websites with subscriber logins, and even one development domain which is especially puzzling because it was never used publicly.
While these domains are being blocked, xFinity customers won't be able to access their paid content or unsubscribe from our mailings. Regular HTTP traffic on port 80 displays an interstitial safebrowse.io warning page that at least gives visitors the opportunity to proceed anyway, but secure HTTPS traffic is just being blocked with a misleading SSL protocol error.
In the beginning we assumed the problem was in our SSL configuration, but it turned out it's a side-effect from being blocked by xFi Advanced Security. When I switch to another provider like Google Fi or Verizon DSL, or when I turn xFi Advanced Security off, I can access all of our domains without any problems.
Our IT department reached out to their Comcast Business Rep but they haven't had much success yet, instead they recommended to contact support on the Comcast Residential side. I did contact customer support, but they said they didn't have "adequate tools" to address this issue.
I understand that anyone could claim that a domain is safe, secure and not being used for spam, but is there a way to get this case reviewed? Is there a contact or form to request a review and get them whitelisted? Or does the request have to come from a supervisor or our deliverability, IT, or legal departments?
Thank you in advance,