Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:rua+us-customfab.com@dmarc.barracudanetworks.com; ruf=mailto:ruf+us-customfab.com@dmarc.barracudanetworks.com

Registro IPv4
host: us-customfab.com
class: IN
ttl: 1509
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: us-customfab.com
class: IN
ttl: 1510
type: SOA
mname: NS61.WORLDNIC.com
rname: namehost.WORLDNIC.com
serial: 123111713
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600