Registro DMARC
v=DMARC1; p=none; pct=100; aspf=r; adkim=r; rua=mailto:dmarc@sinopec.com; ruf=mailto:dmarc@sinopec.com; fo=1;

Servidores DNS Principal (mname) y Secundario (rname)
host: sinopec.com
class: IN
ttl: 21600
type: SOA
mname: ns1.sinopec.com
rname: admin.sinopec.com
serial: 2025031009
refresh: 28800
retry: 7200
expire: 2400000
minimum-ttl: 900

Servidor de Correo
host: sinopec.com
class: IN
ttl: 90
type: MX
pri: 4
target: mailmx4.sinopec.com

Información TXT
host: sinopec.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx ip4:219.143.118.3 ip4:123.124.249.224 ip4:223.119.51.171 ip4:183.242.52.3 ip4:114.247.161.131 ip4:36.112.50.231 ip4:61.135.14.231 ip4:219.142.191.131 ip4:110.16.192.6 ip4:1.180.19.6 ip4:218.189.28.251 ip4:218.188.67.105 -all
entries: Array

Información TXT
host: sinopec.com
class: IN
ttl: 300
type: TXT
txt: b7e192b5ab9f4732cff71a38b3948fd082ecdc34d4390c353317f5ef9d8ef27
entries: Array