On 06/11/2023 02:48, Fred Morris via Postfix-users wrote:

Let's step out of the echo chamber or petri dish or whatever.

On Sun, 5 Nov 2023, Jaroslaw Rafa via Postfix-users wrote: Dnia 5.11.2023 o godz. 13:53:46 Noel Butler via Postfix-users pisze: If correctly forwarded it does not break SPF, since correctly
forwarding rewrites the sender

It's a nexus of control. The owner/operator of a mailing list has ultimate control over the subscribers, the senders

and recipients;

We agree on this at least.

there can be legal action taken against them. You would

Maybe in your country, don't assume there no such protections elsewhere.

protest mightily if someone took one of your private (and implicitly copyrighted by you according to international convention) emails and re-sent it to random people with your sender line untouched. Of course you would protest if they forged the sender line so as to be attributable to you.

Private mail sure I'd be pissed, as would anyone, however, when you send to a mailing list or newsgroup, you have NO expectation of privacy, and no legal protections from Bourne or any other international convention, the fact I like many don't remove our corporate style sigs from mailing posts is CBB, everyone knows it means nothing on a mailing list including those (like me) who CBF removing it), then there are some that are added by corporate mail systems and not clients and have no control - yet still known it means nothing on a mailing list.

You send to mailing list, its the list servers job to authenticate you via DMARC/DKIM/SPF, once it's done so, it has received your email, it then reproduces your Email (config'd correctly without your sigs) and sends it out to recipient members, using its own DKIM and SPF record and list headers, at that point in time it is the list server who is sending the message, your not sending it directly to the often tens of thousands of members yourself. So recipient should only see the list message from the list server in any anti spoofing measures and SPF/DKIM/DMARC the list server nothing else.

It's not that hard to understand, unless your out to troll.

The sender may have expectations, reasonable or not, regarding the disposition of messages they send to a particular email address; arguably that does include forwarding. See for example the legal warnings on emails not for forward if you received them by "mistake".

covered above

Spammers say that a lot.

No they don't in my 30 odd years experience as a recipient of the vermins trash, and as postmaster.

--
Regards,
Noel Butler

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