It can be anything! An apex, subdomain, or even a URL.

Results for_spf.upgates.com

Resolver

Location

TXT

Name	TTL	Value
_spf.upgates.com	300	v=spf1 ip4:46.28.108.67 ip4:31.31.75.235 ip4:46.28.109.112 ip4:46.28.110.230 ip4:139.162.177.215 ip4:172.104.150.31 ip4:104.248.20.135 ip4:93.95.33.46 ~all