On Fri 18/Sep/2020 15:17:53 +0200 Joseph Brennan wrote:
or don't use p=quarantine and p=rejectKeep it simple
Publishing an actionable policy is not just a question of simplicity. It
conditions the very semantics of DMARC.
OTOH, MLM transformations break signatures irrespective of From:
or don't use p=quarantine and p=rejectKeep it simple
On Fri, Sep 18, 2020 at 5:47 AM Alessandro Vesely wrote:
> On Thu 17/Sep/2020 21:11:42 +0200 Sabahattin Gucukoglu wrote:
> >
> > Wouldn’t it be nice if you could ask for MLMs to transform, just using a
> DMARC policy, even p=none, so
On Thu 17/Sep/2020 21:11:42 +0200 Sabahattin Gucukoglu wrote:
>
> Wouldn’t it be nice if you could ask for MLMs to transform, just using a
> DMARC policy, even p=none, so that you could test with a live environment
> containing MLMs that work around DMARC policy? Or you could ask for *no*
> tra
ect: Re: [dmarc-ietf] DMARC as Signal to MLMs for Rewrites (or not)
On 17 Sep 2020, at 20:59, Jesse Thompson
wrote:
> On 9/17/20 2:11 PM, Sabahattin Gucukoglu wrote:
>> Wouldn't it be nice if you could ask for MLMs to transform, just using a
>> DMARC policy, even p=none,
>
>
On 9/17/20 5:09 PM, Sabahattin Gucukoglu wrote:
> On 17 Sep 2020, at 20:59, Jesse Thompson
> wrote:
>> On 9/17/20 2:11 PM, Sabahattin Gucukoglu wrote:
>>> Wouldn’t it be nice if you could ask for MLMs to transform, just using a
>>> DMARC policy, even p=none,
>>
>> It is possible via p=quarantine
On 17 Sep 2020, at 20:59, Jesse Thompson
wrote:
> On 9/17/20 2:11 PM, Sabahattin Gucukoglu wrote:
>> Wouldn’t it be nice if you could ask for MLMs to transform, just using a
>> DMARC policy, even p=none,
>
> It is possible via p=quarantine pct=0.
>
> I think it makes sense to consider codify
On 9/17/20 2:11 PM, Sabahattin Gucukoglu wrote:
> Wouldn’t it be nice if you could ask for MLMs to transform, just using a
> DMARC policy, even p=none,
It is possible via p=quarantine pct=0.
I think it makes sense to consider codifying beyond this defacto standard hack.
Isn't this part of DM
AFAIK, at the moment, MLMs doing transforms on headers to make messages
DMARC-safe have no reliable way of knowing whether sender domains intended them
to do so or not: there’s a heuristic that just says that in general, a DMARC
domain enforcing an active quarantine or reject policy probably wan
