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

Results for_spf.cmailpro.net

Resolver

Location

TXT

Name	TTL	Value
_spf.cmailpro.net	14400	v=spf1 ip4:87.246.24.0/24 ip4:87.246.3.0/24 ip4:172.16.31.0/24 ip4:172.17.31.0/24 ip4:91.215.218.0/24 ip4:78.142.50.0/24 ip4:79.124.30.0/24 ip4:77.77.148.198 ip4:82.118.241.0/24 ip4:195.69.166.162 ip4:5.104.170.0/24 ip4:193.41.64.0/24 ~all