[dns-operations] NXDOMAIN plus CNAME answer - works sometimes!?

James Stevens James.Stevens at jrcs.co.uk
Thu Mar 22 15:48:33 UTC 2018

But "amazonaws.com" /does/ exist, so surely authority from the COM zone 
/alone/ can't be cited to say the CNAME doesn't exist?

On 22/03/18 14:28, Roy Arends wrote:
> The ns7.markmonitor.com server has been configured to respond authoritatively for the com zone and for the cgma.org zone.

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