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

Results for_mailnets.vertexvis.com

Resolver

Location

TXT

Name	TTL	Value
_mailnets.vertexvis.com	3600	v=spf1 ip4:207.54.93.57/32 ip4:139.138.47.100 ip4:209.235.236.97/32 ip4:54.240.51.52/32 ip4:54.240.51.53/32 ip4:59.89.227.124/32 ip4:52.89.227.124/32 ip4:85.222.130.192/26 ip4:85.222.138.192/26 ip4:96.43.144.0/20 ~all