Registro DMARC
v=spf1 -all

Registro IPv4
host: shareitfwd.com
class: IN
ttl: 300
type: A
ip: 72.52.179.174

Servidores DNS Principal (mname) y Secundario (rname)
host: shareitfwd.com
class: IN
ttl: 300
type: SOA
mname: ns1.linode.com
rname: protection.domainoverwatch.com
serial: 2021000003
refresh: 300
retry: 300
expire: 300
minimum-ttl: 300