On Sat 01/Feb/2025 00:31:02 +0100 Todd Herr wrote:
On Fri, Jan 31, 2025 at 5:01 PM Damian Lukowski
<[email protected]> wrote:
In practice, how common are messages with no domain in the From header?
I don't recall seeing any and I would expect that if there are any,
they're all spam that would get filtered for other reasons.>>
After seeing [1], I tried to find out whether DMARCbis had something else
to say about such case.
[1] https://github.com/msimerson/mail-dmarc/pull/255
Where in the DNS would one find a DMARC policy record named
"_dmarc.localhost"?
On your server you can define whatever you like. I have "localhost" in
named.conf.default-zones, from Debian defaults IIRC. Could add _dmarc as well...
Best
Ale
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