. UCE Protect does not blacklist emails sent via IPv6. All of our OVHcloud services come with at least a single IPv6 address that you can configure. All major email providers now support IPv6.
Ultimately, UCE Protect wants all of the newly blocked ASNs to pay for express delisting. ($502 per IP) Paying for delisting on blacklists only leads to an increase in blacklisting overall and ultimately hurts the industry.
UCE Protect claims automatically delist ASNs after 1 week, which we hope will happen but as it is outside of our control, we cannot provide any guarantees regarding this.
I have had an IPv4 for nearly 3 years that I had never used and it too was black listed. Hence my leaving OVH, and discovering Enhanced in the process and ditched cpanel for this.