On 29/12/16 01:32, John Fawcett wrote: >> The IP is relatively new to me, about two months, but it was not on >> the list before as I use Spamhaus on my other mail servers and mail >> from it was not being rejected until yesterday. >> >> I did go through the manual removal process and that worked, but I'm >> worried about it happening again. > > One thing that is worth noting is that blocking of ipv6 addresses is > going to be done generally not at the lowest level since that will > create a lot of entries. Spamhaus are listing at /64 range. That is > compliant with the ipv6 space that end users should get as a minimum > allocation. However, not all providers adhere to the minimum allocation. > For example one of my providers gives me a single ipv6 /128 address. > That means that anyone else in the /64 could get my ip blocked.
This is likely what happened. Linode assigns a single static IPv6 /128 by default, but you can request a /64 free of charge. For an email server I would recommend you do this or you will have problems. Peter
