Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!uflorida!haven!decuac!avolio
From: avolio@decuac.dec.com (Frederick M. Avolio)
Newsgroups: comp.unix.ultrix
Subject: Re: mail11v3
Message-ID: <2634@decuac.DEC.COM>
Date: 30 Mar 89 19:50:48 GMT
References: <174@indri.primate.wisc.edu> <4899@hubcap.clemson.edu>
Sender: news@decuac.DEC.COM
Organization: Digital Equipment Corp, SWS, Maryland
Lines: 22


In article <174@indri.primate.wisc.edu>, bin@primate.wisc.edu (Brain in Neutral) writes:

> sendmail doesn't try the name server unless your sendmail.cf tells it to,
> right?  (i.e., via $[..$])  Are you telling it to ask the name server, if
> the address looks like a::b, and if so, why?
> 
> Paul DuBois
> dubois@primate.wisc.edu		rhesus!dubois
> bin@primate.wisc.edu		rhesus!bin
 
Hi Paul!

Sendmail will explicitly insert whatis returned from a nameserver query when you
have thje $[address$] ion your RHS transformation in the config file.  You do not need
to do this and usually only want to if you want to do soemthing special with what is
returned (in other words if you care about it).  Otherwise, if you leave this out,
it still uses the name server when it tries to mail it.  In fact it uses it again even
if you do explicitly call it in the rules as above.  It asks for an mx record from
the network if you have bind in your svcorder file.

Fred