mail.upsales.com has no NS records.
NS records for this zone are defined at upsales.com.
NS records for this zone are defined at upsales.com.
Question and response
Question
dig ghs.googlehosted.com. NS
Answer
The response has no answer records.
Authority
googlehosted.com. 60 SOA ns1.google.com. dns-admin.google.com. 889730864 900 900 1800 60
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0