lists.isc.org and DMARC
bind at iment.com
Tue Feb 16 23:51:11 UTC 2021
Our DMARC Policy has been "p=quarantine" since 30 Jun 2019, so I guess it won't affect us. (It was "p=none" before that -- we only started using DKIM in Apr 2017.)
On Tue, 16 Feb 2021 20:54:30 +0000 (UTC)
Dan Mahoney <dmahoney at isc.org> wrote:
> Greetings bind-users netizens.
> Dan Mahoney, ISC SysAdmin here.
> This is a message about lists.isc.org and DMARC. If you aren't concerned
> with DMARC, you can ignore it.
> Over a year ago, we added adaptations to lists.isc.org to allow mail from
> DMARC-protected domains to be delivered.
> If you've seen problems with the way lists.isc.org currently handles DMARC
> (rewriting the From: header if your sending-domain has a restrictive
> [p=reject or p=quarantine] DMARC policy), we'd like to hear from you at
> listmaster at isc.org as we are considering making a slightly broader change.
> We are considering setting lists.isc.org to ALSO rewrite the From: header,
> even if your sending-domain has a DMARC (p=none) policy. We think this is
> important because otherwise a domain, in rolling out DMARC with p=none to
> start, will see false positives from mailing lists (indicating that
> messages sent via that list would be rejected by the final recipients'
> We believe it makes sense for lists.isc.org to behave the same for *ANY*
> DMARC policy and are considering implementing that in the next few weeks.
> We will keep you updated here.
> -Dan Mahoney
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