Registro DMARC
v=spf1 include:_netblocks.mimecast.com ~all

Registro IPv4
host: execsearchinc.net
class: IN
ttl: 4658
type: A
ip: 208.91.197.25

Servidores DNS Principal (mname) y Secundario (rname)
host: execsearchinc.net
class: IN
ttl: 4659
type: SOA
mname: NS93.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 120103019
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: execsearchinc.net
class: IN
ttl: 4659
type: MX
pri: 10
target: us-smtp-inbound-1.mimecast.com

Servidor de Correo
host: execsearchinc.net
class: IN
ttl: 4659
type: MX
pri: 10
target: us-smtp-inbound-2.mimecast.com

Información TXT
host: execsearchinc.net
class: IN
ttl: 4659
type: TXT
txt: MS=ms89923986
entries: Array

Información TXT
host: execsearchinc.net
class: IN
ttl: 4659
type: TXT
txt: v=spf1 include:_netblocks.mimecast.com ~all
entries: Array