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

Results for*.de-nserver.de

Resolver

Location

TXT

Name	TTL	Value
*.de-nserver.de	300	v=spf1 mx include:secure-mailgate.com ip4:85.158.181.0/24 ip4:37.228.152.0/21 ip4:77.75.248.0/21 ip4:185.61.40.0/22 ip4:85.158.176.0/21 ip4:91.151.23.0/24 ip4:91.151.16.0/21 ip4:178.250.8.0/21 ip4:185.39.220.0/22 ip4:81.88.33.0/24 a ~all