John Levine via mailop <mailop@mailop.org> wrote: > > It appears that Michael Grimm via mailop <trash...@ellael.org> said: >>> Sharing a /64 among multiple customers doesn't make sense. It's not like >>> OVH is in danger of running out of IPv6 space any time soon. >> >> OVH is sharing a /64 subnet among multiple customers since they started >> their public cloud project. You are only provided with a single IPv6 address >> for your >> instance. In the years before that, I had had access to an exclusive /64 >> subnet. >> >> >> But that isn't the point of my initial post: Spamhaus is blocking the /64 >> subnet my address is part of. Fair enough. >> >> *But* on the other hand they are offering an web-based de-listing service >> without human interference. Good. After successful delisting, that >> particular IPv6 address >> becomes immediately de-listed. Fine. >> >> That tells me, that they must have a setup where individual IPv6 of a >> blocked /64 subnet become whitelisted. *That* worked in the past for a very >> long time. Only >> recently the whitelisting is of a very short time frame. > > No, it means that they will let people delist a few mistakes, but if the /64 > keeps being > listed I think you will find that the self removal goes away. > > The solution is to find a competent hosting company that will provide > your own /64. As I keep saying, sometimes when you pick a cheap > option, you get what you pay for.
FYI: I do have a reply from Spamhaus on one of my tickets, now: [begin quote] CSS lists IPv6 with /64 granularity, and one or more IPs within the /64 in question are sending spam. A /64 is he industry standard for the smallest IPv6 allocation to individual customers, even for home-uses like cable, DSL or wireless. The /64 choice has RFC4291 as its origin and it is further discussed in RFC6177. [end quote] Thanks to all who responded. Now, I do understand my erroneous assumptions regarding Spamhaus' delisting process. As this is a hobby project of mine, and I am not willing to increase my expenses significantly, I have re-configured both mailservers of mine to use IPv4 addresses for outgoing mails, only. No big deal, and I can live with that. Regards, Michael _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
