Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; sp=none; fo=1; ri=86400

Registro IPv4
host: sfsewers.org
class: IN
ttl: 6703
type: A
ip: 216.119.104.145

Servidores DNS Principal (mname) y Secundario (rname)
host: sfsewers.org
class: IN
ttl: 6737
type: SOA
mname: NS49.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 125100716
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Información TXT
host: sfsewers.org
class: IN
ttl: 3138
type: TXT
txt: v=spf1 -all
entries: Array