Hi Walter: On Sun, 6 Aug 2017 19:45:22 +0200 Walter Alejandro Iglesias wrote: > What determines those "ranges", who regulates that?
Some ISPs submit IP blocks to various blacklists. e.g: https://www.Spamhaus.Org/faq/section/Spamhaus%20PBL#242 http://www.Sorbs.Net/faq/dul.shtml Asking your ISP to exclude your addresses might help. Regards, -- Craig Skinner | http://twitter.com/Craig_Skinner | http://linkd.in/yGqkv7