Servidores DNS Principal (mname) y Secundario (rname)
host: sterlingtr.com
class: IN
ttl: 1999
type: SOA
mname: ns10.dnsmadeeasy.com
rname: dns.dnsmadeeasy.com
serial: 2009010147
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: sterlingtr.com
class: IN
ttl: 600
type: MX
pri: 0
target: sterlingtr-com.mail.protection.outlook.com

Información TXT
host: sterlingtr.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
entries: Array