Registro DMARC
v=spf1 include:spf2.esputnik.com include:servers.mcsv.net include:mail.zendesk.com ip4:208.82.16.0/22 ip4:8.6.19.94 a mx ~all

Registro IPv4
host: johndean.ning.com
class: IN
ttl: 300
type: A
ip: 208.82.16.68

Servidor de Correo
host: johndean.ning.com
class: IN
ttl: 300
type: MX
pri: 10
target: amx.ning.com

Información TXT
host: johndean.ning.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:spf2.esputnik.com include:servers.mcsv.net include:mail.zendesk.com ip4:208.82.16.0/22 ip4:8.6.19.94 a mx ~all
entries: Array

Registro IPv6
host: johndean.ning.com
class: IN
ttl: 300
type: AAAA
ipv6: 2620:46:2000:16::68