Registro DMARC
v=DMARC1; p=none

Servidores DNS Principal (mname) y Secundario (rname)
host: tetrainfo.com
class: IN
ttl: 300
type: SOA
mname: ns.dinahosting.com
rname: hostmaster.tetrainfo.com
serial: 2014122801
refresh: 3600
retry: 120
expire: 1209600
minimum-ttl: 300

Servidor de Correo
host: tetrainfo.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.tetrainfo.com

Información TXT
host: tetrainfo.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:spf.protection.outlook.com a mx ip4:5.56.61.194 ip4:82.98.155.231 ip4:188.93.79.35 ip4:188.93.73.22 ip4:188.93.73.23  ~all
entries: Array

Información TXT
host: tetrainfo.com
class: IN
ttl: 300
type: TXT
txt: MS=0DDEE88C738B6EC3355D2D9960BEB6DB43691F66
entries: Array

Información TXT
host: tetrainfo.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=KbgiAmbPa1kdgn99bXgqzGJhNZFi8sDD_QcJmt2JUxk
entries: Array