pmta-stage-edge-send2.sailthru-stage.cloud has no NS records.
NS records for this zone are defined at sailthru-stage.cloud.
NS records for this zone are defined at sailthru-stage.cloud.
Question and response
Question
dig pmta-stage-edge-send2.sailthru-stage.cloud. NS
Answer
The response has no answer records.
Authority
sailthru-stage.cloud. 900 SOA ns-1692.awsdns-19.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0