Re: IP as MX - should mail be delivered.

>However, I can't find anywhere that specifically forbids it. This makes
>it difficult when the customer is saying "but it works from my
>(other/old) provider" Does anyone know why sendmail does support this
>and is there any reason to consider making exim do the same?

It should probably be supported.  As to why sendmail supports it,
I would guess that it is a side effect of the way it was coded,
rather than an explicit semantic decision.
-- 
    Ronald S. Karr
    tron |-<=>-|    tron@???