Re: Last Call: draft-klensin-rfc2821bis

Ned Freed wrote:
>> 	er, NO.  SMTP has no dependence on what may or may
>> 	not exist in the DNS.  Forcing SMTP to depend on DNS
>> 	is a huge mistake.  And yes Virginia, I plan on removing
>> 	A rr's from my zones (eventually)
> 
> You know, that's a very interesting point. One of more common configuration
> variations we see is to disable MX lookups and just use address records. (This
> is done for a variety of reasons, most often having to do with administrative
> control issues.) In an IPv6-only future world I see no reason why the need for
> this sort of configuration will vanish and I don't think having the RFCs
> say it shouldn't work is a good idea.
> 
> I'm therefore changing my position from "no opinion" to "keep 2821bis the way
> it is".
> 
> 				Ned

I don't think disabling MX lookups altogether is a smart move.  There
could be a variety of reasons I want my A or AAAA records to point to
one server, and my mail to go to a different server altogether.

Willie
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