bind: how to accept authoritative answers only?

[Tim Maestas]

	Don't know if this is related or not, but I had a friend
	recently run into a similar problem.  He was running
	sendmail 8.11.x and BIND 8.2.2-p7.  Sendmail would
	refuse to relay mail if it got a non-authoritative answer
	from a server that was listed in a zone's NS records (ie the
	server was lame).  This was on Solaris.

-Tim


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On Sun, 28 Jan 2001, Mike Tancsa wrote:

> 
> 
> With the help of a few others on the FreeBSD list, the problem has been 
> narrowed down to the way sendmail is built on FreeBSD.  Still not sure if 
> its totally a sendmail issue, but if you build sendmail with NETINET6, we 
> get these problems exchanging mail with LAME domains.
> 
>          ---Mike
> 
> At 09:15 PM 1/27/2001 -0500, Mike Tancsa wrote:
> 
> >At 01:19 AM 1/28/2001 +0000, Jim Reid wrote:
> > >I think you are mistaken. My name server is able to resolve MX records
> > >and hostnames for their targets for both zones even though one of
> > >moody.edu's servers is lame as are both of supercom.ca's as you say.
> > >The name servers you advertise for sentex.net seem to have no trouble
> > >resolving the MX records for these zones either. So if you have a
> > >problem delivering mail to them, it probably lies somewhere other than
> > >the DNS.
> >
> >OK, a little more digging and I am starting to think this is something
> >FreeBSD specific in the way that sendmail is built on STABLE and perhaps
> >the way BIND is built on FreeBSD 3.x.  Suffice to say, FreeBSD using
> >generic versions of sendmail 8.11.2 and the latest release BIND, do not
> >seem to have these problems. I will follow up in the relevant FreeBSD lists.
> >
> >          ---Mike
> >
> >
> >--------------------------------------------------------------------
> >Mike Tancsa,                                      tel +1 519 651 3400
> >Network Administration,                           mike at sentex.net
> >Sentex Communications                             www.sentex.net
> >Cambridge, Ontario Canada                         www.sentex.net/mike
> 
> --------------------------------------------------------------------
> Mike Tancsa,                          	          tel +1 519 651 3400
> Network Administration,     			  mike at sentex.net
> Sentex Communications                 		  www.sentex.net
> Cambridge, Ontario Canada			  www.sentex.net/mike
> 
>