On 2021-07-05 10:22:26 -0400, Polyna-Maude Racicot-Summerside wrote: > What annoy my is that I am paying for a dedicated IP for my server (in > shared hosting) and I believe it must be a mis-configuration I've done,
Yes, a mis-configuration in your case (see my other mail message). > I agree with you, people who SPAM do have the infrastructure to make > their domain resolution match, both forward, reverse and possibly > side-way if there's a need. They have huge amount of resources to do so, > they may even locate their server farm (physical) in some jurisdiction > who give them free play and doesn't enforce (or simple doesn't have) law > regarding the unsolicited mail. In particular, snowshoe spamming... (I blacklist the corresponding IP blocks completely, and check the logs from time to time. But this is always 100% spam.) But some spammers also use compromised machines, which normally never send mail directly, so that some of them are not configured with a valid reverse. That's why rejecting such suspicious mail may be useful (I would rather do that combined with countries, e.g. China, if possible). -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
