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

Results for_spf-shared.si-shell.net

Resolver

Location

TXT

Name	TTL	Value
_spf-shared.si-shell.net	300	v=spf1 a mx ip4:185.148.72.145 ip4:146.247.24.166 ip4:146.247.25.206 ip4:185.148.72.120 ip4:146.247.25.63 ip4:185.148.72.215 ip4:185.148.72.101 ip4:185.148.72.230 ip4:185.148.72.145 ip4:146.247.24.166 ip4:146.247.25.233 ip4:185.148.72.108 ip4:185.148.72.1 00 ip4:185.148.73.170 ip4:185.148.73.190 ip4:146.247.26.120 ip4:146.247.26.201 ip4:146.247.26.206 ip4:146.247.26.100 ip4:185.148.72.106 ~all