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Re: ADMD (was: Re: I-D ACTION:draft-crocker-email-arch-06.txt)

2007-03-13 16:00:14
On Tue, 13 Mar 2007 11:35:05 PDT, David MacQuigg said:

But even if there were a chain of MTAs between you and Songbird, and they 
were clearly labeled with different domain names, I'm still not seeing the 
utility of having outsiders treat Songbird as a separate ADMD.

It's not just outsiders - sometimes the distinction matters to people
on the *inside*.  For example, understanding that Songbird is one ADMD
and the sender is another ADMD makes it easier to understand how and why
this happened:

I see that has an SPF record authorizing one server at, not the one that sent your message!!

Exactly.  And in fact, you then go on to say it yourself:

                                         Songbird is your agent, and 
you have a choice of many such agents who don't have a problem publishing a 
correct list of their authorized transmitters.

Therefor, Songbird as an agent is an ADMD distinct from Dave Crocker's ADMD,
since there is *no* way for Dave's ADMD to have a choice of many such values of

Remember - Dave is *also* "outside" the Songbird ADMD, even if he's on
"the other side" of it from you.

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