Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc@smtp.mailtrap.live; ruf=mailto:dmarc@smtp.mailtrap.live; rf=afrf; pct=100

Registro IPv4
host: vnseo.edu.vn
class: IN
ttl: 300
type: A
ip: 45.76.176.70

Servidores DNS Principal (mname) y Secundario (rname)
host: vnseo.edu.vn
class: IN
ttl: 1800
type: SOA
mname: lee.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2376756281
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: vnseo.edu.vn
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.mailersend.net -all
entries: Array

Información TXT
host: vnseo.edu.vn
class: IN
ttl: 300
type: TXT
txt: google-site-verification=dBq0aarQLU21ie_mlE_SRtI5gmXLiOOWLOeWZrY2hw0
entries: Array

Información TXT
host: vnseo.edu.vn
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.mailersend.net include:_spf.smtp.mailtrap.live -all
entries: Array