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

Registro IPv4
host: citibank.com
class: IN
ttl: 3600
type: A
ip: 192.193.218.130

Registro IPv4
host: citibank.com
class: IN
ttl: 3600
type: A
ip: 192.193.102.175

Servidores DNS Principal (mname) y Secundario (rname)
host: citibank.com
class: IN
ttl: 3600
type: SOA
mname: nusmwdc-edns01.nsroot.net
rname: hostmaster.citi.com
serial: 2021097531
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: citibank.com
class: IN
ttl: 1800
type: MX
pri: 5
target: mx-b.mail.citi.com

Servidor de Correo
host: citibank.com
class: IN
ttl: 1800
type: MX
pri: 5
target: mx-a.mail.citi.com

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a:mail.citigroup.com ip4:217.29.160.12 ip4:84.45.73.5 include:spf-00123c01.pphosted.com ~all
entries: Array

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: paloaltonetworks-site-verification=59fcee26fb9ae46cb912e8ec453faa3b82c65ee0e94f7fb7de1a59b07e9b8cf3
entries: Array

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: facebook-domain-verification=3afsyr7t6cmarl3sc8dfohlz53n4ho
entries: Array

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: VISA= FD198643A226A2DF34520ABDB6E14155
entries: Array

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=l0yLgWkGs-ik3cNg8LCqI4IRtJe_qvzRYILtrnQ-L4E
entries: Array

Información TXT
host: citibank.com
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=kZISuG3O5lKpwO_y-LOv8wR6wuDt8TVjeU8hzFVlI4s
entries: Array