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

Results for_s00000026.autospf.email

Resolver

Location

TXT

Name	TTL	Value
_s00000026.autospf.email	300	v=spf1 ip4:52.203.5.138 ip4:66.102.0.0/20 ip4:74.125.0.0/16 ip4:167.89.0.0/17 ip4:50.31.32.0/19 ip4:198.21.0.0/21 ip4:149.72.0.0/16 ip4:3.222.0.24/29 ip4:3.222.0.88/29 ip4:18.235.53.110 ip4:54.159.173.91 ip4:135.84.82.0/24 ip4:66.249.80.0/20 ip4:72.14.192 .0/18 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:172.217.0.0/19 ip4:168.245.0.0/17 ip4:159.183.0.0/16 ip4:34.198.193.174 ip4:34.202.174.188 include:_s000000260.autospf.email -all