Re: Scope Creep

John Leslie wrote:
>    This statement is exactly correct.
> 
>> Anything that eliminates use of an A/AAAA record changes this basic
>> flexibility.
> 
>    This statement is not.
> 
>    One could say, "Anything that eliminates the use of an A RR as a
> substitute registration changes this flexibility."

What this reformulation misses is that using an A* record means that there is no 
incremental registration requirement.  Since the A* record is there for other 
reasons, it means that being an email server only requires running the software.

So, what you are calling "substitution" is, in fact, requiring an email-specific 
registration step that is not now present.  In fact, it has already been 
documented over the last few days that registering MXs can be problematic.

>> So the requirement "How should the intent to receive email for a
>> domain be signaled?" is, in fact, a very basic change to the core
>> Internet mail service model.
> 
>    Funny, I thought it was a question.

There is currently no requirement to register intent.  So to ask the question is 
to look for a change to the model.

>    Dave is certainly entitled to an opinion that there shouldn't be
> any such way -- thought I don't think that's _quite_ what he's saying.

It wasn't.  I'm fine with providing an ability to state intent.  I'm not fine 
with requiring it.

> (I wish he'd be a little clearer.)

So does he, but he's not likely to get any better at clarity.

>    But while we're discussing the subject, I see nothing wrong with
> raising the issue. Perhaps somebody might become convinced that
> active registration is worth encouraging.

As long as the discussion is decoupled from the *bis round of discussion, that's 
dandy.

>> However, trying to squeeze that effort into the RFC2821bis process
>> is a good way to kill both.
> 
>    ... which makes me wonder why folks are so intent on squeezing an
> extension of Implied-MX into this (hopefully) Draft Standard...

Well, after all, as long as we have the hood up,...

It's easy to get distracted.

d/
--

-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net