spf.relay.m247.global has no NS records.
NS records for this zone are defined at m247.global.
NS records for this zone are defined at m247.global.
Question and response
Question
dig spf.relay.m247.global. NS
Answer
The response has no answer records.
Authority
m247.global. 1800 SOA cheryl.ns.cloudflare.com. dns.cloudflare.com. 2398629075 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0