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

Results forspf-claramail.mail.eu.clara.net

Resolver

Location

TXT

Name	TTL	Value
spf-claramail.mail.eu.clara.net	1800	v=spf1 ip4:195.8.64.16/28 ip4:195.8.64.32/28 ip4:195.8.64.48/28 ip4:195.8.64.64/28 ip4:195.8.64.80/28 ip4:195.8.64.96/28 ip4:195.8.64.112/28 ip4:195.8.89.32/28 ip4:195.8.89.48/28 ip4:80.168.101.224/28 ip4:212.125.75.64 ip4:213.253.59.80/28 ~all