Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Registro IPv4
host: aacmail.com
class: IN
ttl: 21600
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: aacmail.com
class: IN
ttl: 21600
type: SOA
mname: udns1.cscdns.net
rname: hostmaster.cscdns.net
serial: 2019101118
refresh: 28800
retry: 7200
expire: 1209600
minimum-ttl: 86400