Re: [dmarc-ietf] Been Quiet Around Here - Org Domain? Tree Walk?

[Scott Kitterman]

On March 20, 2022 7:47:57 PM UTC, John R Levine <jo...@taugh.com> wrote:
>On Sun, 20 Mar 2022, Alessandro Vesely wrote:
>> To better understand what those domains are, let me note that if I restrict 
>> the PSL to just the ICANN part, as has been sometimes suggested, ...
>
>Not any more.  The people suggesting it misunderstood what the PSL 
>contained.  There are applications where only the ICANN part is useful but 
>DMARC is not one of them.
>
>>> The performance issue is insignificant.
>>
>> Maybe performance doesn't matter.  However, what do we expect to find out by 
>> a tree walk?  We'd come to the same conclusion as using the ICANN only list 
>> unless their record contains psd=y.  Correct?
>
>No, that is completely wrong.  Please review the previous thousand 
>messsages about why we are switching to a tree walk.

For the record, I was the one that suggested using only the ICANN part.  It was 
a bad suggestion that would cause more problems than it would solve.  Dumping 
PSL and moving to something else is the right plan 

Scott K

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