[dmarc-ietf] General Purpose Domain

[Neil Anuskiewicz <[e-mail]>]

Unless I’m misunderstanding, a General Purpose Domain is a separate domain or at least subdomain:

*   You’d use a General Purpose Domain (GPD) exclusively for Mailing Lists
*  You would designate either a subdomain or a less critical org domain as your GPD. 
* The GPD MUST NOT have an enforcing policy of reject. That is, the policy of a GPD must remain p=none.

The heading is Interoperability considerations which is a section mostly talking about indirect mail flows. The explanation’s cursory for such a common and challenging problem. 

I’d say start with defining the problem and solution in more depth, giving Mailing Lists its own heading under Indirect mail flows with a clearly delineated problem and solution even at the risk of some redundancy.

Otherwise, I think there will be a lot of busy people who will miss the indirect mail bit entirely and many who do read it won’t grok what exactly they’re supposed to do and why.

 Neil