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

Results forspf2.mailgrid.com.br

Resolver

Location

A

Name	TTL	Value
spf2.mailgrid.com.br	300	167.172.150.101DigitalOcean, LLC

Name	TTL	Value
spf2.mailgrid.com.br	300	v=spf1 ip4:51.79.107.137 ip4:149.56.148.172 ip4:149.56.195.24 ip4:51.79.33.59 ip4:51.79.35.208 ip4:51.222.110.3 ip4:198.27.89.167 ip4:192.99.254.115 ip4:144.217.15.82 ip4:51.161.76.181 ip4:192.99.254.220 ip4:54.39.64.71 ip4:15.229.238.18 -all