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Date:      Tue, 21 Mar 2000 21:23:53 +0530 (IST)
From:      Rahul Siddharthan <rsidd@physics.iisc.ernet.in>
To:        freebsd-questions@freebsd.org
Subject:   Problem with "host" command (doesn't return mx records)
Message-ID:  <Pine.BSF.4.20.0003212110210.664-100000@theory1.physics.iisc.ernet.in>

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The host command here is returning only the ip address if it
exists (if not, nothing), it doesn't return mx records.

I did a make world on March 11 (March 10 in the US), on a machine
which acts as a mail relay for other machines in the
room. Today I noticed that a few mails didn't seem to be going
through because of host lookup failures. For instance, 
   host rri.ernet.in
returns merely
   rri.ernet.in has address 202.41.68.2
(a number which does not accept mail, and in fact no
longer exists) whereas the host command on any other machine
returns
   rri.ernet.in has address 202.41.68.2
   rri.ernet.in mail is handled (pri=10) by mailserver.rri.res.in
   rri.ernet.in mail is handled (pri=20) by rri.ernet.in

Similarly, 
   host cam.ac.uk
returns nothing , while it ought to return
   cam.ac.uk mail is handled (pri=7) by ppsw.cam.ac.uk
   cam.ac.uk mail is handled (pri=99) by route-back-x.cam.ac.uk

The command used to work earlier, and other than the "make world"
there seem to be no other config changes. However, the makeworld
was several days ago and I check the mail queue quite regularly,
I don't think there was anything unusual before today. Also, all
machines here are configured to use the same nameserver (which I
also tried specifying explicitly on the commandline), but other
machines return the complete mx records and this one doesn't.

Any idea what could be wrong, and what else I can do to check?

For now I've set up the thing to route mail through another
relay, but that's unsatisfactory.


Rahul.



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