[Samba] DKIM, DMARC, mailman. Oh Joy!

Andrew Bartlett abartlet at samba.org
Wed Mar 28 17:51:50 UTC 2018

On Wed, 2018-03-28 at 19:28 +0200, Reindl Harald via samba wrote:
> *every* single message from this mailing list has a reply-to header to
> the poster, independent who is the poster, no other mailing-list on
> planet earth has a reply-to-header - it's that simple - period

So, e-mail is hard these days, and mailing list e-mail is even harder.

Read up about the interactions between DKIM, DMARC and mailing lists

Either we change the From (and so need to set a Reply-To otherwise it
becomes impossible to do a private reply, which is needed sometimes) or
we get every google user booted off the list whenever a yahoo user

It sucks all round.  Samba uses the last option listed in the table

(Historically, we used to set reply-to to the mailing list, to avoid
accidental private replies).

I hope this clarifies things,

Andrew Bartlett

Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

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