mail2.mc.ingenico.com has no NS records.
NS records for this zone are defined at mc.ingenico.com.
NS records for this zone are defined at mc.ingenico.com.
Question and response
Question
dig mail2.mc.ingenico.com. NS
Answer
The response has no answer records.
Authority
mc.ingenico.com. 300 SOA ns-cloud-b1.googledomains.com. cloud-dns-hostmaster.google.com. 1 21600 3600 259200 300
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0