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

Servidores DNS Principal (mname) y Secundario (rname)
host: twtelecom.net
class: IN
ttl: 300
type: SOA
mname: ns3.level3.net
rname: dnsteam.level3.com
serial: 2025060400
refresh: 86400
retry: 3600
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: twtelecom.net
class: IN
ttl: 300
type: MX
pri: 10
target: mailgate.corp.intranet

Servidor de Correo
host: twtelecom.net
class: IN
ttl: 300
type: MX
pri: 10
target: nimap.dnvr.twtelecom.net

Servidor de Correo
host: twtelecom.net
class: IN
ttl: 300
type: MX
pri: 20
target: nmx1.mail.level3.net

Información TXT
host: twtelecom.net
class: IN
ttl: 300
type: TXT
txt: _a7xp0z2t6wgrrxwqya8d5nh5zvz7igr
entries: Array

Información TXT
host: twtelecom.net
class: IN
ttl: 300
type: TXT
txt: 9bmczb401pcdb02hgcpnrxyf30y69xw3
entries: Array

Información TXT
host: twtelecom.net
class: IN
ttl: 300
type: TXT
txt: w6xbh0yq7pfdhmszyplsch4jn5cw2jpd
entries: Array

Información TXT
host: twtelecom.net
class: IN
ttl: 300
type: TXT
txt: TWTC NOC ( ^800 ) ^829-0420
entries: Array