I moved from OWH because they only assigned a /128 to VPSes, so you're sharing a /64 with other servers. That was problematic because I run my own email server,

I moved from OWH because they only assigned a /128 to VPSes, so you're sharing a /64 with other servers. That was problematic because I run my own email server, and blacklists for IPv6 tend to be specific to a /64, meaning neighbouring servers landed my own server on blacklists (i.e. they blanket blacklist the whole /64). And obvs cloud providers sadly host a lot of spammers. In the end, since OVH even after being asked for years offer no option for /64s on VPSes, I moved to Hetzner, where a VPS gets it's own /64, so only I am responsible for my mail server's reputation.