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

Results for_spf.smtp.oderland.net

Resolver

Location

TXT

Name	TTL	Value
_spf.smtp.oderland.net	7200	v=spf1 ip4:46.16.239.69 ip4:46.16.237.0/24 ip4:46.246.43.219 ip6:2a02:28f0:0:100:1c54:8aff:fe7e:d740 ip6:2a02:28f1:8003::/48 ip6:2a00:1a28:1108:b::25 -all