On Thu, 10 Jul 2025 at 10:04, Francisco Valladolid H. <fic...@gmail.com> wrote:
> You can share the link
I knew something was missing!
Surprisingly, it's actually in this very thread, but we just don't see
it in Gmail, because of the DMARC policy of the sending domain.
Actually, per dmarc, the message was supposed to have been completely
rejected by Gmail in accordance to the wishes of the sending domain,
but instead it appears to be quarantined in the Spam folder with the
following disclaimer regarding the authenticity:
==<<
Be careful with this message.
The sender hasn't authenticated this message, so Gmail can't verify
that it actually came from them. Avoid clicking links, downloading
attachments or replying with personal information.
==>>
And the following headers:
==<<
Authentication-Results: mx.google.com;
dkim=pass header.i=@openbsd.org header.s=selector1 header.b=tBHmT4Wo;
dkim=fail header.i=@bsdly.net header.s=x header.b=Mi9X6MwO;
spf=pass (google.com: domain of owner-misc+mXXX=x...@openbsd.org
designates 199.185.178.25 as permitted sender)
smtp.mailfrom="owner-misc+MXXX=x...@openbsd.org";
dmarc=fail (p=REJECT sp=REJECT dis=QUARANTINE) header.from=bsdly.net
==>>
Looking at DKIM, the signature obviously has to be invalid because
most of the headers it's signed over, would invariably be
amended/changed by any mailing list after the initial DKIM signature
by the initial sending domain:
==<<
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=simple/simple;
d=bsdly.net; s=x;
h=Sender:Content-Type:MIME-Version:Message-ID:Subject:To:From:Date:
Reply-To:Cc:Content-Transfer-Encoding:Content-ID:Content-Description:
Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:
In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:
List-Post:List-Owner:List-Archive;
bh=JsoUF37AsgW/BUaM5sLb9g6P06mQOd5PUQ8y9Tv3fq8=;
b=Mi9X6MwOr+1lWkeO6KqMN+WQhB
4IF1gd6clO8gGGWr93J3WaqVbjolfFDXKG0JkKW5xGiC/Nu8H90KABKi6rXFD+370xKn5W4XRKoQJ
3fOHk1kww1QE2y3waoTgUfaEOvIYLB68MZMiPEQeXZrAG4VPfcPxcFIMGMHvKJQaJYUo=;
==>>
If those `Sender` and `List*` headers weren't included, the DKIM would
probably pass, because misc@openbsd.org doesn't append to the body of
the message, nor does it rewrite the basic Subject/To/From headers,
unlike some other lists do.
Anyhow, a copy can also be obtained at:
* https://marc.info/?l=openbsd-misc&m=175205773526134&w=2
And the pre-order is at:
* https://nostarch.com/book-of-pf-4th-edition
Best regards,
Constantine.
