named[1095]: error (unexpected RCODE REFUSED)

[Chris]

I've just finished setting up Bind as a local caching name server to
work in conjunction with my Spamassassin setup. I did this because
queries to uribl.com were getting blocked probably due to my ISPs
reputation for spam. It seems to be working great, no more of the
blocked queries to uribl.com however I am seeing a lot of this:

error (unexpected RCODE REFUSED) resolving
'b4d44f4bcc9ddf0e61605920116ce915.ctyme.ixhash.net/A/IN':
62.75.209.50#53
error (unexpected RCODE REFUSED) resolving 'getcreations.com/AAAA/IN':
192.185.149.195#53
error (connection refused) resolving
'185.130.201.205.dnsbl.sorbs.net/A/IN': 67.228.187.34#53
error (connection refused) resolving
'185.130.201.205.dnsbl.sorbs.net/A/IN': 174.36.235.174#53


this is a query to a domain I own

error (unexpected RCODE REFUSED) resolving 'toadnet.com/AAAA/IN':
207.218.247.135#53

Do I have something in my setup incorrect?
Thanks for any advice

Chris
-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11°N 97.89°W (Elev. 1092 ft)
08:26:07 up 1 day, 11:08, 1 user, load average: 0.22, 0.24, 0.25
Ubuntu 14.04.2 LTS, kernel 4.0.0-997-generic #201503310205 SMP Tue Mar
31 02:07:04 UTC 2015