spf0._spf.enbridgegas.com has no NS records.
NS records for this zone are defined at enbridgegas.com.
NS records for this zone are defined at enbridgegas.com.
Question and response
Question
dig spf0._spf.enbridgegas.com. NS
Answer
The response has no answer records.
Authority
enbridgegas.com. 1800 SOA blue.foundationdns.com. webpresence.enbridge.com. 2399567990 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0