Re: [dmarc-ietf] Mailing lists - assumptions

On 4/18/2014 11:43 AM, Pete Resnick wrote:
> 5. For a recipient of mailing list mail, their site cares about whether
> the message they got came directly from the mailing list site, cares
> that the mailing list got the mail directly from the originating user's
> site, and cares that the mailing list got the mail relatively recently.
> For the most part, the recipient's site doesn't care how much has
> changed about the content of the message. The eventual recipient might
> care if the changes are in the extreme, but from a "is this spoofed
> spam" perspective, that really doesn't matter.
>
> 6. The mailing list cares about whether it got the message directly from
> the originating user's site.


Mailing lists can cascade.

An easy example is for a group to have a single subscription, but to use 
an address that, itself, is a 'local' mailing list.  This can be 
elaborated where there is a hierarchy of groups, such as:

    [email protected]

    everyone -> sales, marketing, ops, engineering

    sales -> west coast region, east coast...

and so on.


The model needs to work for sequences of mailing lists.

d/
-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net

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