sendmail questions about deferred messages

[Ambrogio]

Il giorno dom, 04/06/2006 alle 18.59 -0400, Tony Nelson ha scritto:
> At 8:39 PM +0200 6/4/06, Ambrogio wrote:
>  ...
> >I seen that if I send the same messages 100 times, the system is
> >querying dns for the same MX 100 times.
> 
> Set up a local DNS caching server?  (I know /nothing/.  And maybe you
> already have one; are the queries slow?)
This is my idea for today.
But I don't understand why those queries when the delivery will be local

Tnx
 Ambrogio