Re: DMARC/DKIM and OpenBSD Mailinglists

On Fri, Mar 22, 2024 at 4:41 PM Stuart Henderson <stu.lists@spacehopper.org> wrote:

On 2024-03-22, Odhiambo Washington <odhiambo@gmail.com> wrote:
> --0000000000003aa8dc06143b8cab
> Content-Type: text/plain; charset="UTF-8"
> Content-Transfer-Encoding: quoted-printable
>
> On Fri, Mar 22, 2024 at 11:18=E2=80=AFAM Stuart Henderson <stu.lists@spaceh=
> opper.org>
> wrote:
>
>> On 2024-03-21, Roderick <hruodr@gmail.com> wrote:
>> > --000000000000e4360006142cfd57
>> > Content-Type: text/plain; charset=3D"UTF-8"
>> > Content-Transfer-Encoding: quoted-printable
>> >
>> > Is it not ARC meant to be the solution for
>> > this problem?
>>
>> That was sort-of the idea, but it requires mail server admins to decide
>> which ARC signers (i.e. mailing list servers) to trust. Recently gmail
>> haven't even been trusting mailing list servers to send emails with the
>> same message-id to multiple recipients...
>>
>> Don't use gmail unless you don't mind missing some mails.
>>
>> I've got to say, I find the From rewrites less annoying than not
>> scrubbing MIME parts, though I'd prefer if Reply-To was set (to
>> list+sender, leaving any Mail-Followup-To in place). Many lists have
>> done this (often for all senders, not just those with published
>> DMARC policy) and, after a period of adjustment to get used to it,
>> it's not so bad.
>>
>
> Is there a reason that bars OBSD List Admins from using Mailman3??

No need to, I'd say. That doesn't magically fix anything, is a bit of
a nuisance to install and keep updated, and majordomo can be modified
anyway.

All the sites I know, including the ones that I run (installed and managed by me) don't have these issues

you're having an endless thread about.

Mailman3 is Open Source. Runs easily in a Python virtualenv in production. 

--

Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223

 In an Internet failure case, the #1 suspect is a constant: DNS.
"Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)

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