Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.reports.rua@citi.com

Registro IPv4
host: citirewards.com
class: IN
ttl: 300
type: A
ip: 52.9.178.40

Registro IPv4
host: citirewards.com
class: IN
ttl: 300
type: A
ip: 54.193.22.252

Registro IPv4
host: citirewards.com
class: IN
ttl: 300
type: A
ip: 52.202.86.19

Registro IPv4
host: citirewards.com
class: IN
ttl: 300
type: A
ip: 3.226.128.114

Servidores DNS Principal (mname) y Secundario (rname)
host: citirewards.com
class: IN
ttl: 3600
type: SOA
mname: ns1.nsroot1.com
rname: hostmaster.citi.com
serial: 2021094329
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 3600

Información TXT
host: citirewards.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a:mail.citigroup.com -all
entries: Array