Registro DMARC
v=DMARC1; p=none; fo=1; rua=mailto:rua+gmftx.com@dmarc.barracudanetworks.com; ruf=mailto:ruf+gmftx.com@dmarc.barracudanetworks.com

Servidores DNS Principal (mname) y Secundario (rname)
host: gmftx.com
class: IN
ttl: 7200
type: SOA
mname: NS67.WORLDNIC.com
rname: namehost.WORLDNIC.com
serial: 124062616
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600