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

Results forspf.apozin.de

Resolver

Location

TXT

Name	TTL	Value
spf.apozin.de	172800	v=spf1 ip4:178.250.162.96/28 ip4:178.250.162.90 ip4:95.129.55.16/29 ip4:185.11.139.0/24 include:spf.hosting.de a:mxout.ecval.com a:mxout2.ecval.com ~all