lists.isc.org and DMARC

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

lists.isc.org and DMARC

Dan Mahoney
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
[hidden email] 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'
mailservers/filters).

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
ISC
_______________________________________________
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list

ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information.


bind-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/bind-users
Reply | Threaded
Open this post in threaded view
|

Re: lists.isc.org and DMARC

Bind-Users forum mailing list
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 <[hidden email]> 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
> [hidden email] 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'
> mailservers/filters).
>
> 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
> ISC

_______________________________________________
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list

ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information.


bind-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/bind-users