Ok. I agree my IP can be obtained easily. I did not know that. On the other hand, Drumpf's agencies should not be able to force my Canadian ISP to give them any info. Or did I misunderstand what you were saying? Alice Sep. 23, 2026 14:09:58 Ron via linux <linux [ at ] linux-ottawa [ dot ] org>: > Dianne Skoll via linux wrote on 2026-09-23 06:31: >> What I'm wondering is this: Why is it a problem if your IP address is >> disclosed? Maybe if you're a dissident in an authoritarian society, but >> in Canada? I don't see it. > > For me, when I ran some web servers on my home IP, I felt it preferable to refrain from disclosing my IP in every email. Not a huge deal, just preferred. > > > When I finally implemented the feature though, it was mostly a learning process for Postfix. > > > > >> If a government agency wanted to find my IP address, they would do so by ordering my ISP to disclose it. > Well, if the IP isn't in the headers, they wouldn't know which ISP to approach. > > But then they'd just see who controls the server first in the list of Received-From and demand account info from that provider. Basically, I'm agreeing with you re: nation-state level investigators. > > > >> And there are a million other ways to find out your IP, not the >> least looking at server logs if you happen to visit a government >> website. > Tying a specific visitor to an email header IP would take a lot more effort if the ISP-assigned IP is stripped from the headers. > > > > Again, pretty much agreeing with you on all points but at least I'm a wee bit more protected from DDoS when that originating IP is stripped out. And, I learned something doing it and that's the real bonus. > > > > Cheers! >