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

Results forapp.devour.network

Resolver

Location

A

Name	TTL	Value
app.devour.network	3600	151.101.1.195Fastly, Inc.
app.devour.network	3600	151.101.65.195Fastly, Inc.

Name	TTL	Value
app.devour.network	3600	10 mx1.forwardemail.net
app.devour.network	3600	20 mx2.forwardemail.net

Name	TTL	Value
app.devour.network	3600	forward-email=craigt@craigt.com
app.devour.network	3600	forward-email=info:craigt@craigt.com
app.devour.network	3600	forward-email=test:craigt@craigt.com
app.devour.network	3600	google-site-verification=B6JEjxDNoi8toHJY3hRrzRW_QTu4hkthz6PAYXAHs2A
app.devour.network	3600	v=spf1 a mx include:spf.forwardemail.net -all