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

Results forbilling.wowpropertysummit.com

Resolver

Location

A

Name	TTL	Value
billing.wowpropertysummit.com	14400	15.204.46.232OVH US LLC / OVH SAS

Name	TTL	Value
billing.wowpropertysummit.com	14400	v=spf1 ip4:15.204.46.232 include:relay.mailchannels.net +a +mx +ip4:169.1.20.6 ~all