Not Exact error

[Davenport, Steve M]

Can someone tell me the cause of the "not exact" error and how to troubleshoot?

21-Mar-2011 11:01:24.931 xfer-in: error: transfer of '219.130.IN-ADDR.ARPA/IN' from
130.219.31.5#53: failed while receiving responses: not exact
After this message appears, a retry on the transfer runs error free.

Thanks,
Steve
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